v6.6.0

feat(web_serviceworker): Enable service worker dashboard speedtests via TypedSocket, expose ServiceWorker instance to dashboard, and add server-side speedtest handler
v6.5.0
2025-12-04 12:16:24 +00:00 · 2025-12-04 12:16:24 +00:00 · 2025-12-04 11:46:55 +00:00 · 2025-12-04 11:46:55 +00:00 · 2025-12-04 11:36:27 +00:00 · 2025-12-04 11:36:27 +00:00
34 changed files with 4402 additions and 939 deletions
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,113 @@
 # Changelog

+## 2025-12-04 - 6.6.0 - feat(web_serviceworker)
+Enable service worker dashboard speedtests via TypedSocket, expose ServiceWorker instance to dashboard, and add server-side speedtest handler
+
+- Add `serviceworker_speedtest` typed handler in TypedServer to support download/upload/latency tests from service workers
+- Export `getServiceWorkerInstance` from the web_serviceworker entrypoint so other modules (dashboard) can access the running ServiceWorker instance
+- Make ServiceWorker.typedsocket and ServiceWorker.typedrouter public to allow the dashboard to create and fire TypedSocket requests
+- Update dashboard to run latency, download and upload tests over TypedSocket instead of POSTing to /sw-typedrequest
+- Deprecate legacy servertools.Server.addTypedSocket (now a no-op) and recommend using TypedServer with SmartServe integration for WebSocket support
+
+## 2025-12-04 - 6.5.0 - feat(serviceworker)
+Add server-driven service worker cache invalidation and TypedSocket integration
+
+- TypedServer: push cache invalidation messages to service worker clients (tagged 'serviceworker') before notifying frontend clients on reload
+- Service Worker: connect to TypedServer via TypedSocket; handle 'serviceworker_cacheInvalidate' typed request to clean caches and trigger client reloads
+- Web inject: add fallback to clear caches via the Cache API when global service worker helper is not available
+- Interfaces: add IRequest_Serviceworker_CacheInvalidate typedrequest interface
+- Plugins: export typedsocket in web_serviceworker plugin surface
+- Service worker connection: retry logic and improved logging for TypedSocket connection attempts
+
+## 2025-12-04 - 6.4.0 - feat(serviceworker)
+Add speedtest support to service worker and dashboard
+
+- Add serviceworker_speedtest typed request handler to measure download, upload and latency
+- Expose dashboard speedtest endpoint (/sw-dash/speedtest) and integrate runSpeedtest flow
+- Dashboard UI: add speedtest panel, run button, visual speed bars and online indicator
+- Metrics: introduce ISpeedtestMetrics and methods (recordSpeedtest, setOnlineStatus, getSpeedtestMetrics) and include speedtest data in metrics output
+- Server/tools: add typedrequest handling for speedtest in sw-typedrequest and route service worker dashboard path in CacheManager
+
+## 2025-12-04 - 6.3.0 - feat(web_serviceworker)
+Add advanced service worker subsystems: cache deduplication, metrics, update & network managers, event bus and dashboard
+
+- CacheManager: request deduplication for concurrent fetches, safer caching (preserve CORS headers), periodic in-flight cleanup and full cache cleaning API
+- Fetch handling: improved handling for same-origin vs cross-origin requests, more robust 500 debug responses when upstream fetch fails
+- UpdateManager: rate-limited update checks, offline grace period, debounced update and cache revalidation tasks, forceUpdate logic and persisted version/cache timestamps
+- NetworkManager: online/offline detection, retry/backoff, request timeouts and more resilient makeRequest implementation
+- EventBus: singleton pub/sub with history, once/onMany/onAll helpers and convenience emitters for cache/network/update events
+- MetricsCollector: comprehensive metrics for cache, network, updates and connections with helper methods and JSON/HTML dashboard endpoints (/sw-dash, /sw-dash/metrics)
+- ErrorHandler & ServiceWorkerError: structured error types, severity, context, history and helper APIs for consistent error reporting
+- ServiceWorker & backend: improved install/activate flows, clients.claim(), cache cleaning on activation, backend APIs to purge cache and trigger reloads/notifications
+- TypedServer / servertools: addRoute path pattern parsing (named params & wildcards), safer HTML injection for reload script, TypedRequest controller and service worker route helpers
+- Various safety and compatibility improvements (response cloning, header normalization, cache-control decisions, and fallback behaviors)
+
+## 2025-12-04 - 6.2.0 - feat(web_serviceworker)
+Add service-worker dashboard and request deduplication; improve caching, metrics and error handling
+
+- Add DashboardGenerator to serve an interactive terminal-style dashboard at /sw-dash and a metrics JSON endpoint at /sw-dash/metrics
+- Introduce request deduplication in CacheManager to coalesce concurrent network fetches and avoid duplicate requests
+- Add periodic cleanup for in-flight request tracking to prevent unbounded memory growth
+- Improve caching flow: preserve response headers (excluding cache-control headers), ensure CORS headers and Cross-Origin-Resource-Policy, and store response bodies as blobs to avoid locked stream issues
+- Provide clearer 500 error HTML responses for failed fetches to aid debugging
+- Integrate metrics and event emissions for network and cache operations (record request success/failure, cache hits/misses, and emit corresponding events)
+
+## 2025-12-04 - 6.1.0 - feat(web_serviceworker)
+Enhance service worker subsystem: add metrics, event bus, error handling, config and caching/update improvements; make client connection & polling robust
+
+- Introduce MetricsCollector (cache, network, update, connection) for runtime observability and APIs to retrieve metrics
+- Add EventBus singleton to emit/subscribe to internal SW events (cache hits/misses, network events, update lifecycle, connection events)
+- Add ErrorHandler and ServiceWorkerError types for consistent error classification and tracking
+- Add ServiceWorkerConfig with defaults and WebStore persistence to centralize SW settings (cache, update, network, blocked/cacheable domains)
+- CacheManager: implement request deduplication (in-flight request coalescing), periodic in-flight cleanup, record cache hit/miss metrics and safer cache storing (headers/body handling)
+- UpdateManager: rate-limited and concurrency-safe update checks, improved stale-cache handling, event emissions, debounced update and revalidation tasks, and metrics recording
+- NetworkManager: enhanced online/offline detection and robust request retries/timeouts/backoff handling
+- ServiceworkerBackend: improved client reload logic and notification handling via DeesComms and clients API
+- Serviceworker client-side: ActionManager.waitForServiceWorkerConnection now returns a structured result with timeout/retries/backoff; ServiceworkerClient gains controllable polling (AbortController), visibility-based pause/resume, manual trigger and lifecycle cleanup
+- Expose serviceworker bundle routes at both nested and root paths (/serviceworker/*splat and /serviceworker.bundle.js(.map)) in servertools
+- Add/extend typed interfaces for serviceworker metrics and connection results
+
+## 2025-12-04 - 6.0.1 - fix(web_inject)
+Use TypedSocket status API in web_inject and bump dependencies
+
+- ts_web_inject: switch from typedsocket.addTag + eventSubject to await typedsocket.setTag + statusSubject; update logging and handle 'reconnecting' status as backend connection loss
+- Await setTag call to ensure tag is applied before relying on socket state
+- Bump dependencies: @api.global/typedrequest -> ^3.1.11, @api.global/typedsocket -> ^4.1.0, @push.rocks/smartserve -> ^1.1.2
+
+## 2025-12-03 - 6.0.0 - BREAKING CHANGE(servertools.Server.addTypedSocket)
+Deprecate Server.addTypedSocket and upgrade typedsocket to v4; make addTypedSocket a no-op and log a deprecation warning. Bump tsbundle devDependency.
+
+- Upgrade dependency @api.global/typedsocket to ^4.0.0. TypedSocket v4 no longer supports attaching to an existing Express server.
+- Deprecate servertools.Server.addTypedSocket(): the method is now a no-op and emits a console.warn directing users to use TypedServer with SmartServe integration for WebSocket support.
+- Bump devDependency @git.zone/tsbundle to ^2.6.3.
+- Breaking change: any consumer code that relied on addTypedSocket to attach a WebSocket server to an existing Express instance will need to migrate to the new SmartServe/TypedServer integration.
+
+## 2025-12-02 - 5.0.0 - BREAKING CHANGE(devtools)
+Switch /reloadcheck endpoint from GET to POST in DevToolsController
+
+- Updated ts/controllers/controller.devtools.ts: decorator changed from @plugins.smartserve.Get('/reloadcheck') to @plugins.smartserve.Post('/reloadcheck').
+- Clients that previously performed GET requests against /reloadcheck must be updated to use POST. This is a breaking API change.
+- Bump major version to reflect the change in the public HTTP API.
+
+## 2025-12-02 - 4.1.1 - fix(classes.typedserver)
+Instantiate and register DevToolsController only when injectReload is enabled; compile ControllerRegistry routes after registration
+
+- DevToolsController is now created and registered only if options.injectReload is true to avoid unnecessary/invalid registrations when live reload is disabled.
+- ControllerRegistry.compileRoutes() is invoked after registering controllers to precompile decorated routes for faster route matching.
+
+## 2025-12-02 - 4.1.0 - feat(TypedServer)
+Integrate SmartServe controller routing; add built-in routes controller and refactor TypedServer to use controllers and FileServer
+
+- Add BuiltInRoutesController exposing /robots.txt, /manifest.json, /sitemap, /sitemap-news, /feed and /appversion
+- Refactor TypedRequestHandler into a SmartServe-decorated TypedRequestController and register it with ControllerRegistry
+- Refactor TypedServer to use SmartServe: register controller instances, use ControllerRegistry matching, and delegate WebSocket integration to SmartServe
+- Introduce FileServer-based static serving with HTML reload script injection and improved default root handling
+- Expand supported HTTP methods to include HEAD and OPTIONS
+- Remove legacy FeedHelper and consolidate sitemap/feed handling into controllers and helpers
+- Enhance servertools legacy Express utilities: improved HandlerProxy, HandlerStatic, Compressor with caching and preferred compression support
+- Service worker subsystem improvements: CacheManager, NetworkManager, UpdateManager and backend enhancements for robust caching, revalidation and client reloads
+- Web-inject LitElement properties switched from private fields to accessor syntax (typedserver_web.infoscreen)
+
 ## 2025-12-02 - 4.0.0 - BREAKING CHANGE(typedserver)
 Migrate to new push.rocks packages and async smartfs API; replace smartchok with smartwatch; update deps and service worker handling

--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "@api.global/typedserver",
-  "version": "4.0.0",
+  "version": "6.6.0",
  "description": "A TypeScript-based project for easy serving of static files with support for live reloading, compression, and typed requests.",
  "type": "module",
  "exports": {
@@ -58,9 +58,9 @@
  ],
  "homepage": "https://code.foss.global/api.global/typedserver",
  "dependencies": {
-    "@api.global/typedrequest": "^3.1.10",
+    "@api.global/typedrequest": "^3.1.11",
    "@api.global/typedrequest-interfaces": "^3.0.19",
-    "@api.global/typedsocket": "^3.0.1",
+    "@api.global/typedsocket": "^4.1.0",
    "@cloudflare/workers-types": "^4.20251202.0",
    "@design.estate/dees-comms": "^1.0.27",
    "@push.rocks/lik": "^6.2.2",
@@ -82,6 +82,7 @@
    "@push.rocks/smartpromise": "^4.2.3",
    "@push.rocks/smartrequest": "^5.0.1",
    "@push.rocks/smartrx": "^3.0.10",
+    "@push.rocks/smartserve": "^1.1.2",
    "@push.rocks/smartsitemap": "^2.0.4",
    "@push.rocks/smartstream": "^3.2.5",
    "@push.rocks/smarttime": "^4.1.1",
@@ -99,7 +100,7 @@
  },
  "devDependencies": {
    "@git.zone/tsbuild": "^3.1.2",
-    "@git.zone/tsbundle": "^2.6.2",
+    "@git.zone/tsbundle": "^2.6.3",
    "@git.zone/tsrun": "^2.0.0",
    "@git.zone/tstest": "^3.1.3",
    "@types/node": "^24.10.1"
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
 */
 export const commitinfo = {
  name: '@api.global/typedserver',
-  version: '4.0.0',
+  version: '6.6.0',
  description: 'A TypeScript-based project for easy serving of static files with support for live reloading, compression, and typed requests.'
 }
--- a/ts/classes.typedserver.ts
+++ b/ts/classes.typedserver.ts
@@ -1,8 +1,9 @@
 import * as plugins from './plugins.js';
 import * as paths from './paths.js';
 import * as interfaces from '../dist_ts_interfaces/index.js';
-import * as servertools from './servertools/index.js';
-import { type TCompressionMethod } from './servertools/classes.compressor.js';
+import { DevToolsController } from './controllers/controller.devtools.js';
+import { TypedRequestController } from './controllers/controller.typedrequest.js';
+import { BuiltInRoutesController } from './controllers/controller.builtin.js';

 export interface IServerOptions {
  /**
@@ -15,16 +16,6 @@ export interface IServerOptions {
   */
  injectReload?: boolean;

-  /**
-   * enable compression
-   */
-  enableCompression?: boolean;
-
-  /**
-   * choose a preferred compression method
-   */
-  preferredCompressionMethod?: TCompressionMethod;
-
  /**
   * watch the serve directory?
   */
@@ -34,7 +25,6 @@ export interface IServerOptions {

  /**
   * a default answer given in case there is no other handler.
-   * @returns
   */
  defaultAnswer?: () => Promise<string>;

@@ -42,13 +32,14 @@ export interface IServerOptions {
   * will try to reroute traffic to an ssl connection using headers
   */
  forceSsl?: boolean;
+
  /**
   * allows serving manifests
   */
  manifest?: plugins.smartmanifest.ISmartManifestConstructorOptions;
+
  /**
   * the port to listen on
-   * can be overwritten when actually starting the server
   */
  port?: number | string;
  publicKey?: string;
@@ -57,6 +48,7 @@ export interface IServerOptions {
  feed?: boolean;
  robots?: boolean;
  domain?: string;
+
  /**
   * convey information about the app being served
   */
@@ -66,22 +58,48 @@ export interface IServerOptions {
  blockWaybackMachine?: boolean;
 }

-export class TypedServer {
-  // static
-  // nothing here yet
+export type THttpMethod = 'GET' | 'POST' | 'PUT' | 'DELETE' | 'PATCH' | 'HEAD' | 'OPTIONS' | 'ALL';

+export interface IRouteHandler {
+  (request: Request): Promise<Response | null>;
+}
+
+export interface IRegisteredRoute {
+  pattern: string;
+  regex: RegExp;
+  paramNames: string[];
+  method: THttpMethod;
+  handler: IRouteHandler;
+}
+
+export class TypedServer {
  // instance
  public options: IServerOptions;
-  public server: servertools.Server;
+  public smartServe: plugins.smartserve.SmartServe;
  public smartwatchInstance: plugins.smartwatch.Smartwatch;
  public serveDirHashSubject = new plugins.smartrx.rxjs.ReplaySubject<string>(1);
  public serveHash: string = '000000';
  public typedsocket: plugins.typedsocket.TypedSocket;
  public typedrouter = new plugins.typedrequest.TypedRouter();

+  // Sitemap helper
+  private sitemapHelper: SitemapHelper;
+  private smartmanifestInstance: plugins.smartmanifest.SmartManifest;
+
+  // Decorated controllers
+  private devToolsController: DevToolsController;
+  private typedRequestController: TypedRequestController;
+  private builtInRoutesController: BuiltInRoutesController;
+
+  // File server for static files
+  private fileServer: plugins.smartserve.FileServer;
+
+  // Custom route handlers (for addRoute API)
+  private customRoutes: IRegisteredRoute[] = [];
+
  public lastReload: number = Date.now();
  public ended = false;
-  
+
  constructor(optionsArg: IServerOptions) {
    const standardOptions: IServerOptions = {
      port: 3000,
@@ -94,44 +112,64 @@ export class TypedServer {
      ...standardOptions,
      ...optionsArg,
    };
+  }

-    this.server = new servertools.Server(this.options);
-    // add routes to the smartexpress instance
-    this.server.addRoute(
-      '/typedserver/:request',
-      new servertools.Handler('ALL', async (req, res) => {
-        switch (req.params.request) {
-          case 'devtools':
-            res.setHeader('Content-Type', 'text/javascript');
-            res.status(200);
-            const devtoolsContent = await plugins.fsInstance.file(paths.injectBundlePath).encoding('utf8').read();
-            res.write(devtoolsContent);
-            res.end();
-            break;
-          case 'reloadcheck':
-            console.log('got request for reloadcheck');
-            res.setHeader('Content-Type', 'text/plain');
-            res.status(200);
-            if (this.ended) {
-              res.write('end');
-              res.end();
-              return;
-            }
-            res.write(this.lastReload.toString());
-            res.end();
-            break;
-          default:
-            res.status(404);
-            res.write('Unknown request type');
-            res.end();
-            break;
-        }
+  /**
+   * Access sitemap URLs (for adding/replacing)
+   */
+  public get sitemap() {
+    return this.sitemapHelper;
+  }
+
+  /**
+   * Add a custom route handler
+   * Supports Express-style path patterns like '/path/:param' and '/path/*splat'
+   * @param path - The route path pattern
+   * @param method - HTTP method (GET, POST, PUT, DELETE, PATCH, ALL)
+   * @param handler - Async function that receives Request and returns Response or null
+   */
+  public addRoute(path: string, method: THttpMethod, handler: IRouteHandler): void {
+    // Convert Express-style path to regex
+    const paramNames: string[] = [];
+    let regexPattern = path
+      // Handle named parameters :param
+      .replace(/:([a-zA-Z_][a-zA-Z0-9_]*)/g, (_, paramName) => {
+        paramNames.push(paramName);
+        return '([^/]+)';
      })
-    );
-    this.server.addRoute(
-      '/typedrequest',
-      new servertools.HandlerTypedRouter(this.typedrouter)
-    );
+      // Handle wildcard *splat (matches everything including slashes)
+      .replace(/\*([a-zA-Z_][a-zA-Z0-9_]*)/g, (_, paramName) => {
+        paramNames.push(paramName);
+        return '(.*)';
+      });
+
+    // Ensure exact match
+    regexPattern = `^${regexPattern}$`;
+
+    this.customRoutes.push({
+      pattern: path,
+      regex: new RegExp(regexPattern),
+      paramNames,
+      method,
+      handler,
+    });
+  }
+
+  /**
+   * Parse route parameters from a path using a registered route
+   */
+  private parseRouteParams(
+    route: IRegisteredRoute,
+    pathname: string
+  ): Record<string, string> | null {
+    const match = pathname.match(route.regex);
+    if (!match) return null;
+
+    const params: Record<string, string> = {};
+    route.paramNames.forEach((name, index) => {
+      params[name] = match[index + 1];
+    });
+    return params;
  }

  /**
@@ -145,55 +183,99 @@ export class TypedServer {
      );
    }

-    if (this.options.serveDir) {
-      this.server.addRoute(
-        '/{*splat}',
-        new servertools.HandlerStatic(this.options.serveDir, {
-          responseModifier: async (responseArg) => {
-            if (plugins.path.parse(responseArg.path).ext === '.html') {
-              let fileString = responseArg.responseContent.toString();
-              const fileStringArray = fileString.split('<head>');
-              if (this.options.injectReload && fileStringArray.length === 2) {
-                fileStringArray[0] = `${fileStringArray[0]}<head>
-                  <!-- injected by @apiglobal/typedserver start -->
-                  <script async defer type="module" src="/typedserver/devtools"></script>
-                  <script>
-                    globalThis.typedserver = {
-                      lastReload: ${this.lastReload},
-                      versionInfo: ${JSON.stringify({}, null, 2)},
-                    }
-                  </script>
-                  <!-- injected by @apiglobal/typedserver stop -->
-                `;
-                fileString = fileStringArray.join('');
-                console.log('injected typedserver script.');
-                responseArg.responseContent = Buffer.from(fileString);
-              } else if (this.options.injectReload) {
-                console.log('Could not insert typedserver script - no <head> tag found');
-              }
-            }
-            const headers = responseArg.headers;
-            headers.appHash = this.serveHash;
-            headers['Cache-Control'] = 'no-cache, no-store, must-revalidate';
-            headers['Pragma'] = 'no-cache';
-            headers['Expires'] = '0';
-            return {
-              headers,
-              path: responseArg.path,
-              responseContent: responseArg.responseContent,
-              travelData: responseArg.travelData,
-            };
-          },
-          serveIndexHtmlDefault: true,
-          enableCompression: this.options.enableCompression,
-          preferredCompressionMethod: this.options.preferredCompressionMethod,
-        })
-      );
+    const port =
+      typeof this.options.port === 'string'
+        ? parseInt(this.options.port, 10)
+        : this.options.port || 3000;
+
+    // Initialize optional helpers
+    if (this.options.sitemap) {
+      this.sitemapHelper = new SitemapHelper(this.options.domain);
    }
-    
+    if (this.options.manifest) {
+      this.smartmanifestInstance = new plugins.smartmanifest.SmartManifest(this.options.manifest);
+    }
+
+    // Initialize file server for static files
+    if (this.options.serveDir) {
+      this.fileServer = new plugins.smartserve.FileServer({
+        root: this.options.serveDir,
+        index: ['index.html'],
+        etag: true,
+      });
+    }
+
+    // Initialize decorated controllers
+    if (this.options.injectReload) {
+      this.devToolsController = new DevToolsController({
+        getLastReload: () => this.lastReload,
+        getEnded: () => this.ended,
+      });
+    }
+
+    this.typedRequestController = new TypedRequestController(this.typedrouter);
+
+    this.builtInRoutesController = new BuiltInRoutesController({
+      domain: this.options.domain,
+      robots: this.options.robots,
+      manifest: this.smartmanifestInstance,
+      sitemap: this.options.sitemap,
+      feed: this.options.feed,
+      appVersion: this.options.appVersion,
+      feedMetadata: this.options.feedMetadata,
+      articleGetterFunction: this.options.articleGetterFunction,
+      blockWaybackMachine: this.options.blockWaybackMachine,
+      getSitemapUrls: () => this.sitemapHelper?.urls || [],
+    });
+
+    // Register controllers with SmartServe's ControllerRegistry
+    if (this.options.injectReload) {
+      plugins.smartserve.ControllerRegistry.registerInstance(this.devToolsController);
+    }
+    plugins.smartserve.ControllerRegistry.registerInstance(this.typedRequestController);
+    plugins.smartserve.ControllerRegistry.registerInstance(this.builtInRoutesController);
+
+    // Compile routes for fast matching
+    plugins.smartserve.ControllerRegistry.compileRoutes();
+
+    // Build SmartServe options
+    const smartServeOptions: plugins.smartserve.ISmartServeOptions = {
+      port,
+      hostname: '0.0.0.0',
+      tls:
+        this.options.privateKey && this.options.publicKey
+          ? {
+              key: this.options.privateKey,
+              cert: this.options.publicKey,
+            }
+          : undefined,
+      websocket: {
+        typedRouter: this.typedrouter,
+        onConnectionOpen: (peer) => {
+          peer.tags.add('typedserver_frontend');
+          console.log(`WebSocket connected: ${peer.id}`);
+        },
+        onConnectionClose: (peer) => {
+          console.log(`WebSocket disconnected: ${peer.id}`);
+        },
+      },
+    };
+
+    this.smartServe = new plugins.smartserve.SmartServe(smartServeOptions);
+
+    // Set up custom request handler that integrates with ControllerRegistry
+    this.smartServe.setHandler(async (request: Request): Promise<Response> => {
+      return this.handleRequest(request);
+    });
+
+    // Setup file watching
    if (this.options.watch && this.options.serveDir) {
      try {
-        this.smartwatchInstance = new plugins.smartwatch.Smartwatch([this.options.serveDir]);
+        // Use glob pattern to match all files recursively in serveDir
+        const watchGlob = this.options.serveDir.endsWith('/')
+          ? `${this.options.serveDir}**/*`
+          : `${this.options.serveDir}/**/*`;
+        this.smartwatchInstance = new plugins.smartwatch.Smartwatch([watchGlob]);
        await this.smartwatchInstance.start();
        (await this.smartwatchInstance.getObservableFor('change')).subscribe(async () => {
          await this.createServeDirHash();
@@ -202,20 +284,21 @@ export class TypedServer {
        await this.createServeDirHash();
      } catch (error) {
        console.error('Failed to initialize file watching:', error);
-        // Continue without file watching rather than crashing
      }
    }

-    // lets start the server
-    await this.server.start();
+    // Start the server
+    await this.smartServe.start();
+    console.log(`TypedServer listening on port ${port}`);

+    // Setup TypedSocket using SmartServe integration
    try {
-      this.typedsocket = await plugins.typedsocket.TypedSocket.createServer(
-        this.typedrouter,
-        this.server
+      this.typedsocket = plugins.typedsocket.TypedSocket.fromSmartServe(
+        this.smartServe,
+        this.typedrouter
      );

-      // lets setup typedrouter
+      // Setup typedrouter handlers
      this.typedrouter.addTypedHandler<interfaces.IReq_GetLatestServerChangeTime>(
        new plugins.typedrequest.TypedHandler('getLatestServerChangeTime', async () => {
          return {
@@ -223,12 +306,219 @@ export class TypedServer {
          };
        })
      );
+
+      // Speedtest handler for service worker dashboard
+      this.typedrouter.addTypedHandler<interfaces.serviceworker.IRequest_Serviceworker_Speedtest>(
+        new plugins.typedrequest.TypedHandler('serviceworker_speedtest', async (reqArg) => {
+          const startTime = Date.now();
+          const payloadSizeKB = reqArg.payloadSizeKB || 100;
+          const sizeBytes = payloadSizeKB * 1024;
+          let payload: string | undefined;
+          let bytesTransferred = 0;
+
+          switch (reqArg.type) {
+            case 'download':
+              payload = 'x'.repeat(sizeBytes);
+              bytesTransferred = sizeBytes;
+              break;
+            case 'upload':
+              bytesTransferred = reqArg.payload?.length || 0;
+              break;
+            case 'latency':
+              bytesTransferred = 1;
+              break;
+          }
+
+          const durationMs = Date.now() - startTime;
+          const speedMbps = durationMs > 0 ? (bytesTransferred * 8) / (durationMs * 1000) : 0;
+
+          return { durationMs, bytesTransferred, speedMbps, timestamp: Date.now(), payload };
+        })
+      );
    } catch (error) {
      console.error('Failed to initialize TypedSocket:', error);
-      // Continue without WebSocket support rather than crashing
    }
  }

+  /**
+   * Create an IRequestContext from a Request
+   */
+  private async createContext(
+    request: Request,
+    params: Record<string, string>
+  ): Promise<plugins.smartserve.IRequestContext> {
+    const url = new URL(request.url);
+    const method = request.method.toUpperCase() as THttpMethod;
+
+    // Parse query params
+    const query: Record<string, string> = {};
+    url.searchParams.forEach((value, key) => {
+      query[key] = value;
+    });
+
+    // Parse body
+    let body: unknown = undefined;
+    const contentType = request.headers.get('content-type');
+    if (contentType?.includes('application/json')) {
+      try {
+        body = await request.clone().json();
+      } catch {
+        body = {};
+      }
+    }
+
+    return {
+      request,
+      body,
+      params,
+      query,
+      headers: request.headers,
+      path: url.pathname,
+      method,
+      url,
+      runtime: 'node' as const,
+      state: {},
+    };
+  }
+
+  /**
+   * Main request handler - routes to appropriate sub-handlers
+   */
+  private async handleRequest(request: Request): Promise<Response> {
+    const url = new URL(request.url);
+    const path = url.pathname;
+    const method = request.method.toUpperCase() as THttpMethod;
+
+    // First, try to match via ControllerRegistry (decorated routes)
+    const match = plugins.smartserve.ControllerRegistry.matchRoute(path, method);
+    if (match) {
+      try {
+        const context = await this.createContext(request, match.params);
+        const result = await match.route.handler(context);
+
+        // Handle Response or convert to Response
+        if (result instanceof Response) {
+          return result;
+        }
+        return new Response(JSON.stringify(result), {
+          status: 200,
+          headers: { 'Content-Type': 'application/json' },
+        });
+      } catch (error) {
+        if (error instanceof plugins.smartserve.RouteNotFoundError) {
+          // Route explicitly threw "not found", continue to other handlers
+        } else {
+          console.error('Controller error:', error);
+          return new Response('Internal Server Error', { status: 500 });
+        }
+      }
+    }
+
+    // Custom routes (registered via addRoute)
+    for (const route of this.customRoutes) {
+      if (route.method === 'ALL' || route.method === method) {
+        const params = this.parseRouteParams(route, path);
+        if (params !== null) {
+          (request as any).params = params;
+          const response = await route.handler(request);
+          if (response) return response;
+        }
+      }
+    }
+
+    // HTML injection for reload (if enabled)
+    if (this.options.injectReload && this.options.serveDir) {
+      const response = await this.handleHtmlWithInjection(request);
+      if (response) return response;
+    }
+
+    // Try static file serving
+    if (this.fileServer && (method === 'GET' || method === 'HEAD')) {
+      try {
+        const staticResponse = await this.fileServer.serve(request);
+        if (staticResponse) {
+          return staticResponse;
+        }
+      } catch (error) {
+        // Fall through to 404
+      }
+    }
+
+    // Default answer for root
+    if (path === '/' && method === 'GET' && this.options.defaultAnswer) {
+      const html = await this.options.defaultAnswer();
+      return new Response(html, {
+        status: 200,
+        headers: { 'Content-Type': 'text/html' },
+      });
+    }
+
+    // Not found
+    return new Response('Not Found', { status: 404 });
+  }
+
+  /**
+   * Handle HTML files with reload script injection
+   */
+  private async handleHtmlWithInjection(request: Request): Promise<Response | null> {
+    const url = new URL(request.url);
+    const requestPath = url.pathname;
+
+    // Check if this is a request for an HTML file or root
+    if (requestPath === '/' || requestPath.endsWith('.html') || !requestPath.includes('.')) {
+      try {
+        let filePath = requestPath === '/' ? 'index.html' : requestPath.slice(1);
+        if (!filePath.endsWith('.html') && !filePath.includes('.')) {
+          filePath = plugins.path.join(filePath, 'index.html');
+        }
+
+        const fullPath = plugins.path.join(this.options.serveDir, filePath);
+
+        // Security check
+        if (!fullPath.startsWith(this.options.serveDir)) {
+          return new Response('Forbidden', { status: 403 });
+        }
+
+        let fileContent = (await plugins.fsInstance
+          .file(fullPath)
+          .encoding('utf8')
+          .read()) as string;
+
+        // Inject reload script
+        if (fileContent.includes('<head>')) {
+          const injection = `<head>
+                <!-- injected by @apiglobal/typedserver start -->
+                <script async defer type="module" src="/typedserver/devtools"></script>
+                <script>
+                  globalThis.typedserver = {
+                    lastReload: ${this.lastReload},
+                    versionInfo: ${JSON.stringify({}, null, 2)},
+                  }
+                </script>
+                <!-- injected by @apiglobal/typedserver stop -->
+              `;
+          fileContent = fileContent.replace('<head>', injection);
+          console.log('injected typedserver script.');
+        }
+
+        return new Response(fileContent, {
+          status: 200,
+          headers: {
+            'Content-Type': 'text/html; charset=utf-8',
+            'Cache-Control': 'no-cache, no-store, must-revalidate',
+            Pragma: 'no-cache',
+            Expires: '0',
+            appHash: this.serveHash,
+          },
+        });
+      } catch (error) {
+        // Fall through to default handling
+      }
+    }
+
+    return null;
+  }
+
  /**
   * reloads the page
   */
@@ -238,14 +528,41 @@ export class TypedServer {
      console.warn('TypedSocket not initialized, skipping client notifications');
      return;
    }
-    
+
+    // Push cache invalidation to service workers first
    try {
-      const connections = await this.typedsocket.findAllTargetConnectionsByTag('typedserver_frontend');
+      const swConnections = await this.typedsocket.findAllTargetConnectionsByTag('serviceworker');
+      for (const connection of swConnections) {
+        const pushCacheInvalidate =
+          this.typedsocket.createTypedRequest<interfaces.serviceworker.IRequest_Serviceworker_CacheInvalidate>(
+            'serviceworker_cacheInvalidate',
+            connection
+          );
+        pushCacheInvalidate.fire({
+          reason: 'File change detected',
+          timestamp: this.lastReload,
+        }).catch(err => {
+          console.warn('Failed to push cache invalidation to service worker:', err);
+        });
+      }
+      if (swConnections.length > 0) {
+        console.log(`Pushed cache invalidation to ${swConnections.length} service worker(s)`);
+      }
+    } catch (error) {
+      console.warn('Failed to notify service workers:', error);
+    }
+
+    // Notify frontend clients
+    try {
+      const connections = await this.typedsocket.findAllTargetConnectionsByTag(
+        'typedserver_frontend'
+      );
      for (const connection of connections) {
-        const pushTime = this.typedsocket.createTypedRequest<interfaces.IReq_PushLatestServerChangeTime>(
-          'pushLatestServerChangeTime',
-          connection
-        );
+        const pushTime =
+          this.typedsocket.createTypedRequest<interfaces.IReq_PushLatestServerChangeTime>(
+            'pushLatestServerChangeTime',
+            connection
+          );
        pushTime.fire({
          time: this.lastReload,
        });
@@ -260,7 +577,7 @@ export class TypedServer {
   */
  public async stop(): Promise<void> {
    this.ended = true;
-    
+
    const stopWithErrorHandling = async (
      stopFn: () => Promise<unknown>,
      componentName: string
@@ -271,24 +588,24 @@ export class TypedServer {
        console.error(`Error stopping ${componentName}:`, err);
      }
    };
-    
+
    const tasks: Promise<void>[] = [];
-    
-    // Stop server
-    if (this.server) {
-      tasks.push(stopWithErrorHandling(() => this.server.stop(), 'server'));
+
+    // Stop SmartServe
+    if (this.smartServe) {
+      tasks.push(stopWithErrorHandling(() => this.smartServe.stop(), 'SmartServe'));
    }
-    
-    // Stop TypedSocket
+
+    // Stop TypedSocket (in SmartServe mode, this is a no-op but good for cleanup)
    if (this.typedsocket) {
      tasks.push(stopWithErrorHandling(() => this.typedsocket.stop(), 'TypedSocket'));
    }
-    
+
    // Stop file watcher
    if (this.smartwatchInstance) {
      tasks.push(stopWithErrorHandling(() => this.smartwatchInstance.stop(), 'file watcher'));
    }
-    
+
    await Promise.all(tasks);
  }

@@ -306,11 +623,48 @@ export class TypedServer {
      this.serveDirHashSubject.next(this.serveHash);
    } catch (error) {
      console.error('Failed to create serve directory hash:', error);
-      // Use a timestamp-based hash as fallback
      const fallbackHash = Date.now().toString(16).slice(-6);
      this.serveHash = fallbackHash;
      console.log('Using fallback hash: ' + fallbackHash);
      this.serveDirHashSubject.next(fallbackHash);
    }
  }
-}
+}
+
+// ============================================================================
+// Helper Classes
+// ============================================================================
+
+/**
+ * Sitemap helper class
+ */
+class SitemapHelper {
+  private smartSitemap = new plugins.smartsitemap.SmartSitemap();
+  public urls: plugins.smartsitemap.IUrlInfo[] = [];
+
+  constructor(domain?: string) {
+    if (domain) {
+      this.urls.push({
+        url: `https://${domain}/`,
+        timestamp: Date.now(),
+        frequency: 'daily',
+      });
+    }
+  }
+
+  async createSitemap(): Promise<string> {
+    return this.smartSitemap.createSitemapFromUrlInfoArray(this.urls);
+  }
+
+  async createSitemapNews(articles: plugins.tsclass.content.IArticle[]): Promise<string> {
+    return this.smartSitemap.createSitemapNewsFromArticleArray(articles);
+  }
+
+  replaceUrls(urlsArg: plugins.smartsitemap.IUrlInfo[]) {
+    this.urls = urlsArg;
+  }
+
+  addUrls(urlsArg: plugins.smartsitemap.IUrlInfo[]) {
+    this.urls = this.urls.concat(urlsArg);
+  }
+}
--- a/ts/controllers/controller.builtin.ts
+++ b/ts/controllers/controller.builtin.ts
@@ -0,0 +1,125 @@
+import * as plugins from '../plugins.js';
+
+/**
+ * Built-in routes controller for TypedServer
+ * Handles robots.txt, manifest.json, sitemap, feed, appversion
+ */
+@plugins.smartserve.Route('')
+export class BuiltInRoutesController {
+  private options: {
+    domain?: string;
+    robots?: boolean;
+    manifest?: plugins.smartmanifest.SmartManifest;
+    sitemap?: boolean;
+    feed?: boolean;
+    appVersion?: string;
+    feedMetadata?: plugins.smartfeed.IFeedOptions;
+    articleGetterFunction?: () => Promise<plugins.tsclass.content.IArticle[]>;
+    blockWaybackMachine?: boolean;
+    getSitemapUrls: () => plugins.smartsitemap.IUrlInfo[];
+  };
+
+  constructor(options: typeof BuiltInRoutesController.prototype.options) {
+    this.options = options;
+  }
+
+  @plugins.smartserve.Get('/robots.txt')
+  async getRobots(ctx: plugins.smartserve.IRequestContext): Promise<Response> {
+    if (!this.options.robots || !this.options.domain) {
+      throw new plugins.smartserve.RouteNotFoundError(ctx.path, ctx.method);
+    }
+
+    const robotsContent = [
+      'User-agent: *',
+      'Allow: /',
+      `Sitemap: https://${this.options.domain}/sitemap`,
+    ];
+
+    if (this.options.blockWaybackMachine) {
+      robotsContent.push('', 'User-agent: ia_archiver', 'Disallow: /');
+    }
+
+    return new Response(robotsContent.join('\n'), {
+      status: 200,
+      headers: { 'Content-Type': 'text/plain' },
+    });
+  }
+
+  @plugins.smartserve.Get('/manifest.json')
+  async getManifest(ctx: plugins.smartserve.IRequestContext): Promise<Response> {
+    if (!this.options.manifest) {
+      throw new plugins.smartserve.RouteNotFoundError(ctx.path, ctx.method);
+    }
+
+    return new Response(this.options.manifest.jsonString(), {
+      status: 200,
+      headers: { 'Content-Type': 'application/json' },
+    });
+  }
+
+  @plugins.smartserve.Get('/sitemap')
+  async getSitemap(ctx: plugins.smartserve.IRequestContext): Promise<Response> {
+    if (!this.options.sitemap || !this.options.domain) {
+      throw new plugins.smartserve.RouteNotFoundError(ctx.path, ctx.method);
+    }
+
+    const smartsitemap = new plugins.smartsitemap.SmartSitemap();
+    const urls = this.options.getSitemapUrls();
+    const sitemapXml = await smartsitemap.createSitemapFromUrlInfoArray(urls);
+
+    return new Response(sitemapXml, {
+      status: 200,
+      headers: { 'Content-Type': 'application/xml' },
+    });
+  }
+
+  @plugins.smartserve.Get('/sitemap-news')
+  async getSitemapNews(ctx: plugins.smartserve.IRequestContext): Promise<Response> {
+    if (!this.options.sitemap || !this.options.domain || !this.options.articleGetterFunction) {
+      throw new plugins.smartserve.RouteNotFoundError(ctx.path, ctx.method);
+    }
+
+    const smartsitemap = new plugins.smartsitemap.SmartSitemap();
+    const articles = await this.options.articleGetterFunction();
+    const sitemapNewsXml = await smartsitemap.createSitemapNewsFromArticleArray(articles);
+
+    return new Response(sitemapNewsXml, {
+      status: 200,
+      headers: { 'Content-Type': 'application/xml' },
+    });
+  }
+
+  @plugins.smartserve.Get('/feed')
+  async getFeed(ctx: plugins.smartserve.IRequestContext): Promise<Response> {
+    if (!this.options.feed || !this.options.feedMetadata) {
+      throw new plugins.smartserve.RouteNotFoundError(ctx.path, ctx.method);
+    }
+
+    const smartfeed = new plugins.smartfeed.Smartfeed();
+    const articles = this.options.articleGetterFunction
+      ? await this.options.articleGetterFunction()
+      : [];
+
+    const feedXml = await smartfeed.createFeedFromArticleArray(
+      this.options.feedMetadata,
+      articles
+    );
+
+    return new Response(feedXml, {
+      status: 200,
+      headers: { 'Content-Type': 'application/atom+xml' },
+    });
+  }
+
+  @plugins.smartserve.Get('/appversion')
+  async getAppVersion(ctx: plugins.smartserve.IRequestContext): Promise<Response> {
+    if (!this.options.appVersion) {
+      throw new plugins.smartserve.RouteNotFoundError(ctx.path, ctx.method);
+    }
+
+    return new Response(this.options.appVersion, {
+      status: 200,
+      headers: { 'Content-Type': 'text/plain' },
+    });
+  }
+}
--- a/ts/controllers/controller.devtools.ts
+++ b/ts/controllers/controller.devtools.ts
@@ -0,0 +1,53 @@
+import * as plugins from '../plugins.js';
+import * as paths from '../paths.js';
+
+/**
+ * DevTools controller for TypedServer
+ * Handles /typedserver/devtools and /typedserver/reloadcheck endpoints
+ */
+@plugins.smartserve.Route('/typedserver')
+export class DevToolsController {
+  private getLastReload: () => number;
+  private getEnded: () => boolean;
+
+  constructor(options: { getLastReload: () => number; getEnded: () => boolean }) {
+    this.getLastReload = options.getLastReload;
+    this.getEnded = options.getEnded;
+  }
+
+  @plugins.smartserve.Get('/devtools')
+  async getDevtools(ctx: plugins.smartserve.IRequestContext): Promise<Response> {
+    const devtoolsContent = (await plugins.fsInstance
+      .file(paths.injectBundlePath)
+      .encoding('utf8')
+      .read()) as string;
+
+    return new Response(devtoolsContent, {
+      status: 200,
+      headers: {
+        'Content-Type': 'text/javascript',
+      },
+    });
+  }
+
+  @plugins.smartserve.Post('/reloadcheck')
+  async reloadCheck(ctx: plugins.smartserve.IRequestContext): Promise<Response> {
+    console.log('got request for reloadcheck');
+
+    if (this.getEnded()) {
+      return new Response('end', {
+        status: 200,
+        headers: {
+          'Content-Type': 'text/plain',
+        },
+      });
+    }
+
+    return new Response(this.getLastReload().toString(), {
+      status: 200,
+      headers: {
+        'Content-Type': 'text/plain',
+      },
+    });
+  }
+}
--- a/ts/controllers/controller.typedrequest.ts
+++ b/ts/controllers/controller.typedrequest.ts
@@ -0,0 +1,34 @@
+import * as plugins from '../plugins.js';
+
+/**
+ * TypedRequest controller for type-safe RPC endpoint
+ */
+@plugins.smartserve.Route('/typedrequest')
+export class TypedRequestController {
+  private typedRouter: plugins.typedrequest.TypedRouter;
+
+  constructor(typedRouter: plugins.typedrequest.TypedRouter) {
+    this.typedRouter = typedRouter;
+  }
+
+  @plugins.smartserve.Post('/')
+  async handleTypedRequest(ctx: plugins.smartserve.IRequestContext): Promise<Response> {
+    try {
+      const response = await this.typedRouter.routeAndAddResponse(ctx.body as plugins.typedrequestInterfaces.ITypedRequest);
+
+      return new Response(plugins.smartjson.stringify(response), {
+        status: 200,
+        headers: {
+          'Content-Type': 'application/json',
+        },
+      });
+    } catch (error) {
+      return new Response(JSON.stringify({ error: 'Invalid request' }), {
+        status: 400,
+        headers: {
+          'Content-Type': 'application/json',
+        },
+      });
+    }
+  }
+}
--- a/ts/controllers/index.ts
+++ b/ts/controllers/index.ts
@@ -0,0 +1,3 @@
+export * from './controller.devtools.js';
+export * from './controller.typedrequest.js';
+export * from './controller.builtin.js';
--- a/ts/index.ts
+++ b/ts/index.ts
@@ -5,10 +5,10 @@ import * as servertools from './servertools/index.js';
 export { servertools };

 export * from './classes.typedserver.js';
-// Type helpers
-export type Request = plugins.express.Request;
-export type Response = plugins.express.Response;

+// Type helpers - using native Web API Request/Response types
+// Native Request and Response are available in Node.js 18+ and all modern browsers
+// Legacy Express types are available via servertools for backward compatibility

 // lets export utilityservers
 import * as utilityservers from './utilityservers/index.js';
--- a/ts/plugins.ts
+++ b/ts/plugins.ts
@@ -61,11 +61,16 @@ export {
 // Create a ready-to-use smartfs instance with Node.js provider
 export const fsInstance = new smartfs.SmartFs(new smartfs.SmartFsProviderNode());

-// express
+// @push.rocks/smartserve
+import * as smartserve from '@push.rocks/smartserve';
+
+export { smartserve };
+
+// Legacy Express dependencies - kept for backward compatibility with deprecated servertools
+// These will be removed in the next major version
+import express from 'express';
 import bodyParser from 'body-parser';
 import cors from 'cors';
-import express from 'express';
-// @ts-ignore
 import expressForceSsl from 'express-force-ssl';

-export { bodyParser, cors, express, expressForceSsl };
+export { express, bodyParser, cors, expressForceSsl };
--- a/ts/servertools/classes.server.ts
+++ b/ts/servertools/classes.server.ts
@@ -53,10 +53,17 @@ export class Server {
    this.addRoute('/typedrequest', new HandlerTypedRouter(typedrouter));
  }

+  /**
+   * @deprecated This method is deprecated. Use TypedServer with SmartServe integration instead.
+   * TypedSocket v4 no longer supports attaching to an existing Express server.
+   */
  public addTypedSocket(typedrouter: plugins.typedrequest.TypedRouter): void {
-    this.executeAfterStartFunctions.push(async () => {
-      plugins.typedsocket.TypedSocket.createServer(typedrouter, this);
-    });
+    console.warn(
+      '[DEPRECATED] servertools.Server.addTypedSocket() is deprecated and has no effect. ' +
+      'Use TypedServer with SmartServe integration for WebSocket support.'
+    );
+    // TypedSocket v4 creates its own server, which would conflict with Express.
+    // This method is now a no-op for backward compatibility.
  }

  public addRoute(routeStringArg: string, handlerArg?: Handler) {
--- a/ts/servertools/index.ts
+++ b/ts/servertools/index.ts
@@ -1,12 +1,22 @@
-export * from './classes.server.js';
-export * from './classes.route.js';
-export * from './classes.handler.js';
-export * from './classes.handlerstatic.js';
-export * from './classes.handlerproxy.js';
-export * from './classes.handlertypedrouter.js';
+// Core utilities that don't depend on Express
 export * from './classes.compressor.js';
-import * as serviceworker from './tools.serviceworker.js';

-export {
-  serviceworker,
-}
+// Legacy Express-based classes - deprecated, will be removed in next major version
+// These are kept for backward compatibility but should not be used for new code
+// Use SmartServe decorator-based controllers instead
+/** @deprecated Use SmartServe directly */
+export * from './classes.server.js';
+/** @deprecated Use SmartServe @Route decorator */
+export * from './classes.route.js';
+/** @deprecated Use SmartServe @Get/@Post decorators */
+export * from './classes.handler.js';
+/** @deprecated Use SmartServe static file serving */
+export * from './classes.handlerstatic.js';
+/** @deprecated Use SmartServe custom handler */
+export * from './classes.handlerproxy.js';
+/** @deprecated Use SmartServe TypedRouter integration */
+export * from './classes.handlertypedrouter.js';
+
+// Service worker utilities - uses legacy patterns, will be migrated
+import * as serviceworker from './tools.serviceworker.js';
+export { serviceworker };
--- a/ts/servertools/tools.serviceworker.ts
+++ b/ts/servertools/tools.serviceworker.ts
@@ -1,10 +1,8 @@
 import * as plugins from '../plugins.js';
 import * as paths from '../paths.js';

-import * as interfaces from '../../dist_ts_interfaces/index.js'
-import { Handler } from './classes.handler.js';
+import * as interfaces from '../../dist_ts_interfaces/index.js';
 import type { TypedServer } from '../classes.typedserver.js';
-import { HandlerTypedRouter } from './classes.handlertypedrouter.js';

 // Lazy-loaded service worker bundle content
 let swBundleJs: string | null = null;
@@ -12,64 +10,132 @@ let swBundleJsMap: string | null = null;

 const loadServiceWorkerBundle = async (): Promise<void> => {
  if (swBundleJs === null) {
-    swBundleJs = await plugins.fsInstance
+    swBundleJs = (await plugins.fsInstance
      .file(plugins.path.join(paths.serviceworkerBundleDir, './serviceworker.bundle.js'))
      .encoding('utf8')
-      .read() as string;
+      .read()) as string;
  }
  if (swBundleJsMap === null) {
-    swBundleJsMap = await plugins.fsInstance
+    swBundleJsMap = (await plugins.fsInstance
      .file(plugins.path.join(paths.serviceworkerBundleDir, './serviceworker.bundle.js.map'))
      .encoding('utf8')
-      .read() as string;
+      .read()) as string;
  }
 };

 let swVersionInfo: interfaces.serviceworker.IRequest_Serviceworker_Backend_VersionInfo['response'] =
  null;

-const serviceworkerHandler = new Handler(
-  'GET',
-  async (req, res) => {
-    await loadServiceWorkerBundle();
-    if (req.path === '/serviceworker.bundle.js') {
-      res.status(200);
-      res.set('Content-Type', 'text/javascript');
-      res.write(swBundleJs + '\n' + `/** appSemVer: ${swVersionInfo?.appSemVer || 'not set'} */`);
-    } else if (req.path === '/serviceworker.bundle.js.map') {
-      res.status(200);
-      res.set('Content-Type', 'application/json');
-      res.write(swBundleJsMap);
-    }
-    res.end();
-  }
-);
-
 export const addServiceWorkerRoute = (
  typedserverInstance: TypedServer,
  swDataFunc: () => interfaces.serviceworker.IRequest_Serviceworker_Backend_VersionInfo['response']
 ) => {
-  // lets the version info as unique string;
+  // Set the version info
  swVersionInfo = swDataFunc();

-  // the basic stuff
-  typedserverInstance.server.addRoute('/serviceworker/*splat', serviceworkerHandler);
+  // Handler function for serviceworker bundle requests
+  const handleServiceWorkerRequest = async (request: Request): Promise<Response> => {
+    await loadServiceWorkerBundle();
+    const url = new URL(request.url);
+    const path = url.pathname;

-  // the typed stuff
-  const typedrouter = new plugins.typedrequest.TypedRouter();
+    if (path === '/serviceworker/serviceworker.bundle.js' || path === '/serviceworker.bundle.js') {
+      return new Response(
+        swBundleJs + '\n' + `/** appSemVer: ${swVersionInfo?.appSemVer || 'not set'} */`,
+        {
+          status: 200,
+          headers: { 'Content-Type': 'text/javascript' },
+        }
+      );
+    } else if (
+      path === '/serviceworker/serviceworker.bundle.js.map' ||
+      path === '/serviceworker.bundle.js.map'
+    ) {
+      return new Response(swBundleJsMap, {
+        status: 200,
+        headers: { 'Content-Type': 'application/json' },
+      });
+    }

-  typedrouter.addTypedHandler(
-    new plugins.typedrequest.TypedHandler<interfaces.serviceworker.IRequest_Serviceworker_Backend_VersionInfo>(
-      'serviceworker_versionInfo',
-      async (req) => {
-        const versionInfoResponse = swDataFunc();
-        return versionInfoResponse;
-      }
-    )
-  );
+    return null;
+  };

-  typedserverInstance.server.addRoute(
-    '/sw-typedrequest',
-    new HandlerTypedRouter(typedrouter)
-  );
+  // Service worker bundle handler - nested path
+  typedserverInstance.addRoute('/serviceworker/*splat', 'GET', handleServiceWorkerRequest);
+
+  // Service worker bundle handler - root level (for /serviceworker.bundle.js)
+  typedserverInstance.addRoute('/serviceworker.bundle.js', 'GET', handleServiceWorkerRequest);
+  typedserverInstance.addRoute('/serviceworker.bundle.js.map', 'GET', handleServiceWorkerRequest);
+
+  // Typed request handler for service worker
+  typedserverInstance.addRoute('/sw-typedrequest', 'POST', async (request: Request) => {
+    try {
+      const body = await request.json();
+
+      // Create a local typed router for service worker requests
+      const typedrouter = new plugins.typedrequest.TypedRouter();
+
+      typedrouter.addTypedHandler(
+        new plugins.typedrequest.TypedHandler<interfaces.serviceworker.IRequest_Serviceworker_Backend_VersionInfo>(
+          'serviceworker_versionInfo',
+          async () => {
+            return swDataFunc();
+          }
+        )
+      );
+
+      // Speedtest handler for measuring connection speed
+      typedrouter.addTypedHandler(
+        new plugins.typedrequest.TypedHandler<interfaces.serviceworker.IRequest_Serviceworker_Speedtest>(
+          'serviceworker_speedtest',
+          async (reqArg) => {
+            const startTime = Date.now();
+            const payloadSizeKB = reqArg.payloadSizeKB || 100;
+            const sizeBytes = payloadSizeKB * 1024;
+            let payload: string | undefined;
+            let bytesTransferred = 0;
+
+            switch (reqArg.type) {
+              case 'download':
+                // Generate random payload for download test
+                payload = 'x'.repeat(sizeBytes);
+                bytesTransferred = sizeBytes;
+                break;
+              case 'upload':
+                // For upload, measure bytes received from client
+                bytesTransferred = reqArg.payload?.length || 0;
+                break;
+              case 'latency':
+                // Minimal payload for latency test
+                bytesTransferred = 1;
+                break;
+            }
+
+            const durationMs = Date.now() - startTime;
+            // Speed in Mbps: (bytes * 8 bits/byte) / (ms * 1000 to get seconds) / 1,000,000 for Mbps
+            const speedMbps = durationMs > 0 ? (bytesTransferred * 8) / (durationMs * 1000) : 0;
+
+            return {
+              durationMs,
+              bytesTransferred,
+              speedMbps,
+              timestamp: Date.now(),
+              payload, // Only for download tests
+            };
+          }
+        )
+      );
+
+      const response = await typedrouter.routeAndAddResponse(body);
+      return new Response(plugins.smartjson.stringify(response), {
+        status: 200,
+        headers: { 'Content-Type': 'application/json' },
+      });
+    } catch (error) {
+      return new Response(JSON.stringify({ error: 'Invalid request' }), {
+        status: 400,
+        headers: { 'Content-Type': 'application/json' },
+      });
+    }
+  });
 };
--- a/ts/utilityservers/classes.serviceserver.ts
+++ b/ts/utilityservers/classes.serviceserver.ts
@@ -1,9 +1,7 @@
 import { TypedServer } from '../classes.typedserver.js';
-import * as servertools from '../servertools/index.js';
-import * as plugins from '../plugins.js';

 export interface ILoleServiceServerConstructorOptions {
-  addCustomRoutes?: (serverArg: servertools.Server) => Promise<any>;
+  addCustomRoutes?: (typedserver: TypedServer) => Promise<any>;
  serviceName: string;
  serviceVersion: string;
  serviceDomain: string;
@@ -20,12 +18,12 @@ export class UtilityServiceServer {
  }

  public async start() {
-    console.log('starting lole-serviceserver...')
+    console.log('starting lole-serviceserver...');
    this.typedServer = new TypedServer({
      cors: true,
      domain: this.options.serviceDomain,
      forceSsl: false,
-      port: this.options.port || 3000,
+      port: this.options.port || 3000,
      robots: true,
      defaultAnswer: async () => {
        const InfoHtml = (await import('../infohtml/index.js')).InfoHtml;
@@ -37,9 +35,9 @@ export class UtilityServiceServer {
      },
    });

-    // lets add any custom routes
+    // Add any custom routes
    if (this.options.addCustomRoutes) {
-      await this.options.addCustomRoutes(this.typedServer.server);
+      await this.options.addCustomRoutes(this.typedServer);
    }

    await this.typedServer.start();
--- a/ts/utilityservers/classes.websiteserver.ts
+++ b/ts/utilityservers/classes.websiteserver.ts
@@ -1,11 +1,10 @@
 import * as interfaces from '../../dist_ts_interfaces/index.js';
 import { type IServerOptions, TypedServer } from '../classes.typedserver.js';
-import type { Request, Response } from '../index.js';
 import * as plugins from '../plugins.js';
 import * as servertools from '../servertools/index.js';

 export interface IUtilityWebsiteServerConstructorOptions {
-  addCustomRoutes?: (serverArg: servertools.Server) => Promise<any>;
+  addCustomRoutes?: (typedserver: TypedServer) => Promise<any>;
  appSemVer?: string;
  domain: string;
  serveDir: string;
@@ -16,7 +15,6 @@ export interface IUtilityWebsiteServerConstructorOptions {
 * the utility website server implements a best practice server for websites
 * It supports:
 *  * live reload
- *  * compression
 *  * serviceworker
 *  * pwa manifest
 */
@@ -30,7 +28,7 @@ export class UtilityWebsiteServer {
  }

  /**
-   *
+   * Start the website server
   */
  public async start(portArg = 3000) {
    this.typedserver = new TypedServer({
@@ -38,8 +36,6 @@ export class UtilityWebsiteServer {
      injectReload: true,
      watch: true,
      serveDir: this.options.serveDir,
-      enableCompression: true,
-      preferredCompressionMethod: 'gzip',
      domain: this.options.domain,
      forceSsl: false,
      manifest: {
@@ -58,33 +54,32 @@ export class UtilityWebsiteServer {
      sitemap: true,
    });

-    let lswData: interfaces.serviceworker.IRequest_Serviceworker_Backend_VersionInfo['response'] =
-      {
-        appHash: 'xxxxxx',
-        appSemVer: this.options.appSemVer || 'x.x.x',
-      };
+    let lswData: interfaces.serviceworker.IRequest_Serviceworker_Backend_VersionInfo['response'] = {
+      appHash: 'xxxxxx',
+      appSemVer: this.options.appSemVer || 'x.x.x',
+    };

    // -> /lsw* - anything regarding serviceworker
    servertools.serviceworker.addServiceWorkerRoute(this.typedserver, () => {
      return lswData;
    });

-    // lets add ads.txt
-    this.typedserver.server.addRoute(
-      '/ads.txt',
-      new servertools.Handler('GET', async (req, res) => {
-        res.type('txt/plain');
-        const adsTxt =
-          ['google.com, pub-4104137977476459, DIRECT, f08c47fec0942fa0'].join('\n') + '\n';
-        res.write(adsTxt);
-        res.end();
-      })
-    );
+    // ads.txt handler
+    this.typedserver.addRoute('/ads.txt', 'GET', async () => {
+      const adsTxt =
+        ['google.com, pub-4104137977476459, DIRECT, f08c47fec0942fa0'].join('\n') + '\n';
+      return new Response(adsTxt, {
+        status: 200,
+        headers: { 'Content-Type': 'text/plain' },
+      });
+    });

-    this.typedserver.server.addRoute(
+    // Asset broker manifest handler
+    this.typedserver.addRoute(
      '/assetbroker/manifest/:manifestAsset',
-      new servertools.Handler('GET', async (req, res) => {
-        let manifestAssetName = req.params.manifestAsset;
+      'GET',
+      async (request: Request) => {
+        let manifestAssetName = (request as any).params?.manifestAsset;
        if (manifestAssetName === 'favicon.png') {
          manifestAssetName = `favicon_${this.options.domain
            .replace('.', '')
@@ -95,19 +90,19 @@ export class UtilityWebsiteServer {
        const smartRequest = plugins.smartrequest.SmartRequest.create();
        const response = await smartRequest.url(fullOriginAssetUrl).get();
        const arrayBuffer = await response.arrayBuffer();
-        const dataBuffer: Buffer = Buffer.from(arrayBuffer);
-        res.type('.png');
-        res.write(dataBuffer);
-        res.end();
-      })
+        return new Response(arrayBuffer, {
+          status: 200,
+          headers: { 'Content-Type': 'image/png' },
+        });
+      }
    );

-    // lets add any custom routes
+    // Add any custom routes
    if (this.options.addCustomRoutes) {
-      await this.options.addCustomRoutes(this.typedserver.server);
+      await this.options.addCustomRoutes(this.typedserver);
    }

-    // -> /*  - serve the files
+    // Subscribe to serve directory hash changes
    this.typedserver.serveDirHashSubject.subscribe((appHash: string) => {
      lswData = {
        appHash,
@@ -115,11 +110,11 @@ export class UtilityWebsiteServer {
      };
    });

-    // lets setup the typedrouter chain
+    // Setup the typedrouter chain
    this.typedserver.typedrouter.addTypedRouter(this.typedrouter);

-    // lets start everything
-    console.log('routes are all set. Startin up now!');
+    // Start everything
+    console.log('routes are all set. Starting up now!');
    await this.typedserver.start();
    console.log('typedserver started!');
  }
@@ -127,14 +122,4 @@ export class UtilityWebsiteServer {
  public async stop() {
    await this.typedserver.stop();
  }
-
-  /**
-   * allows you to hanlde requests from other server instances without the need to listen for yourself
-   * note smartexpress allows you start the instance wuith passing >>false<< as second parameter to .start();
-   * @param req
-   * @param res
-   */
-  public async handleRequest(req: Request, res: Response) {
-    await this.typedserver.server.handleReqRes(req, res);
-  }
 }
--- a/ts_interfaces/serviceworker.ts
+++ b/ts_interfaces/serviceworker.ts
@@ -124,4 +124,114 @@ export interface IRequest_Client_Serviceworker_ConnectionPolling
  response: {
    serviceworkerId: string;
  }
+}
+
+// ===============
+// Metrics interfaces
+// ===============
+
+/**
+ * Request to get service worker metrics
+ */
+export interface IRequest_Serviceworker_Metrics
+  extends plugins.typedrequestInterfaces.implementsTR<
+  plugins.typedrequestInterfaces.ITypedRequest,
+  IRequest_Serviceworker_Metrics
+  > {
+  method: 'serviceworker_metrics';
+  request: {};
+  response: {
+    cache: {
+      hits: number;
+      misses: number;
+      errors: number;
+      bytesServedFromCache: number;
+      bytesFetched: number;
+      averageResponseTime: number;
+    };
+    network: {
+      totalRequests: number;
+      successfulRequests: number;
+      failedRequests: number;
+      timeouts: number;
+      averageLatency: number;
+      totalBytesTransferred: number;
+    };
+    update: {
+      totalChecks: number;
+      successfulChecks: number;
+      failedChecks: number;
+      updatesFound: number;
+      updatesApplied: number;
+      lastCheckTimestamp: number;
+      lastUpdateTimestamp: number;
+    };
+    connection: {
+      connectedClients: number;
+      totalConnectionAttempts: number;
+      successfulConnections: number;
+      failedConnections: number;
+    };
+    startTime: number;
+    uptime: number;
+  };
+}
+
+// ===============
+// Connection result interface
+// ===============
+
+/**
+ * Result of a service worker connection attempt
+ */
+export interface IConnectionResult {
+  connected: boolean;
+  error?: string;
+  attempts?: number;
+  duration?: number;
+}
+
+// ===============
+// Speedtest interfaces
+// ===============
+
+/**
+ * Cache invalidation request from server to service worker
+ */
+export interface IRequest_Serviceworker_CacheInvalidate
+  extends plugins.typedrequestInterfaces.implementsTR<
+  plugins.typedrequestInterfaces.ITypedRequest,
+  IRequest_Serviceworker_CacheInvalidate
+  > {
+  method: 'serviceworker_cacheInvalidate';
+  request: {
+    reason: string;
+    timestamp: number;
+  };
+  response: {
+    success: boolean;
+  };
+}
+
+/**
+ * Speedtest request between service worker and backend
+ */
+export interface IRequest_Serviceworker_Speedtest
+  extends plugins.typedrequestInterfaces.implementsTR<
+  plugins.typedrequestInterfaces.ITypedRequest,
+  IRequest_Serviceworker_Speedtest
+  > {
+  method: 'serviceworker_speedtest';
+  request: {
+    type: 'download' | 'upload' | 'latency';
+    payloadSizeKB?: number;  // Size of test payload in KB (default: 100)
+    payload?: string;        // For upload tests, the payload to send
+  };
+  response: {
+    durationMs: number;
+    bytesTransferred: number;
+    speedMbps: number;
+    timestamp: number;
+    payload?: string;        // For download tests, the payload received
+  };
 }
--- a/ts_web_inject/index.ts
+++ b/ts_web_inject/index.ts
@@ -75,8 +75,17 @@ export class ReloadChecker {
      this.infoscreen.setText(reloadText);
      if (globalThis.globalSw?.purgeCache) {
        await globalThis.globalSw.purgeCache();
+      } else if ('caches' in window) {
+        // Fallback: clear caches via Cache API when service worker client isn't initialized
+        try {
+          const cacheKeys = await caches.keys();
+          await Promise.all(cacheKeys.map(key => caches.delete(key)));
+          logger.log('ok', 'Cleared caches via Cache API fallback');
+        } catch (err) {
+          logger.log('warn', `Failed to clear caches via Cache API: ${err}`);
+        }
      } else {
-        console.log('globalThis.globalSw not found...');
+        console.log('globalThis.globalSw not found and Cache API not available...');
      }
      this.infoscreen.setText(`cleaned caches`);
      await plugins.smartdelay.delayFor(200);
@@ -102,17 +111,13 @@ export class ReloadChecker {
        this.typedrouter,
        plugins.typedsocket.TypedSocket.useWindowLocationOriginUrl()
      );
-      this.typedsocket.addTag('typedserver_frontend', {});
-      this.typedsocket.eventSubject.subscribe(async (eventArg) => {
-        console.log(`typedsocket event subscription: ${eventArg}`);
-        if (
-          eventArg === 'disconnected' ||
-          eventArg === 'disconnecting' ||
-          eventArg === 'timedOut'
-        ) {
+      await this.typedsocket.setTag('typedserver_frontend', {});
+      this.typedsocket.statusSubject.subscribe(async (statusArg) => {
+        console.log(`typedsocket status: ${statusArg}`);
+        if (statusArg === 'disconnected' || statusArg === 'reconnecting') {
          this.backendConnectionLost = true;
-          this.infoscreen.setText(`typedsocket ${eventArg}!`);
-        } else if (eventArg === 'connected' && this.backendConnectionLost) {
+          this.infoscreen.setText(`typedsocket ${statusArg}!`);
+        } else if (statusArg === 'connected' && this.backendConnectionLost) {
          this.backendConnectionLost = false;
          this.infoscreen.setSuccess('typedsocket connected!');
          // lets check if a reload is necessary
--- a/ts_web_inject/typedserver_web.infoscreen.ts
+++ b/ts_web_inject/typedserver_web.infoscreen.ts
@@ -14,10 +14,10 @@ export class TypedserverInfoscreen extends LitElement {
  //INSTANCE

  @property()
-  private text = 'Hello';
+  accessor text = 'Hello';

  @property()
-  private success = false;
+  accessor success = false;

  public static styles = [
    css`
--- a/ts_web_serviceworker/classes.backend.ts
+++ b/ts_web_serviceworker/classes.backend.ts
@@ -1,6 +1,7 @@
 import * as plugins from './plugins.js';
 import * as interfaces from '../dist_ts_interfaces/index.js';
 import { logger } from './logging.js';
+import { getMetricsCollector } from './classes.metrics.js';

 // Add type definitions for ServiceWorker APIs
 declare global {
@@ -41,11 +42,15 @@ declare global {
 */
 export class ServiceworkerBackend {
  public deesComms = new plugins.deesComms.DeesComms();
+  private swSelf: ServiceWorkerGlobalScope;
+  private clientUpdateInterval: ReturnType<typeof setInterval> | null = null;

  constructor(optionsArg: {
    self: any;
    purgeCache: (reqArg: interfaces.serviceworker.IRequest_PurgeServiceWorkerCache['request']) => Promise<interfaces.serviceworker.IRequest_PurgeServiceWorkerCache['response']>;
  }) {
+    this.swSelf = optionsArg.self as unknown as ServiceWorkerGlobalScope;
+    const metrics = getMetricsCollector();

    // lets handle wakestuff
    optionsArg.self.addEventListener('message', (event) => {
@@ -53,16 +58,51 @@ export class ServiceworkerBackend {
        console.log('sw-backend: got wake up call');
      }
    });
+
    this.deesComms.createTypedHandler<interfaces.serviceworker.IRequest_Client_Serviceworker_ConnectionPolling>('broadcastConnectionPolling', async reqArg => {
+      // Record connection attempt
+      metrics.recordConnectionAttempt();
+      metrics.recordConnectionSuccess();
+      // Update connected clients count
+      await this.updateConnectedClientsCount();
      return {
        serviceworkerId: '123'
      };
-    })
+    });

    this.deesComms.createTypedHandler<interfaces.serviceworker.IRequest_PurgeServiceWorkerCache>('purgeServiceWorkerCache', async reqArg => {
      console.log(`Executing purge cache in serviceworker backend.`)
      return await optionsArg.purgeCache?.(reqArg);
    });
+
+    // Periodically update connected clients count
+    this.startClientCountUpdates();
+  }
+
+  /**
+   * Start periodic updates of connected client count
+   */
+  private startClientCountUpdates(): void {
+    // Update immediately
+    this.updateConnectedClientsCount();
+
+    // Then update every 5 seconds
+    this.clientUpdateInterval = setInterval(() => {
+      this.updateConnectedClientsCount();
+    }, 5000);
+  }
+
+  /**
+   * Update the connected clients count using the Clients API
+   */
+  private async updateConnectedClientsCount(): Promise<void> {
+    try {
+      const clients = await this.swSelf.clients.matchAll({ type: 'window' });
+      const metrics = getMetricsCollector();
+      metrics.setConnectedClients(clients.length);
+    } catch (error) {
+      logger.log('warn', `Failed to update connected clients count: ${error}`);
+    }
  }

  /**
@@ -71,7 +111,7 @@ export class ServiceworkerBackend {
  public async triggerReloadAll() {
    try {
      logger.log('info', 'Triggering reload for all clients due to new version');
-      
+
      // Send update message via DeesComms
      // This will be picked up by clients that have registered a handler for 'serviceworker_newVersion'
      await this.deesComms.postMessage({
@@ -79,13 +119,15 @@ export class ServiceworkerBackend {
        request: {},
        messageId: `sw_update_${Date.now()}`
      });
-      
+
      // As a fallback, also use the clients API to reload clients that might not catch the broadcast
-      // We need to type-cast self since TypeScript doesn't recognize ServiceWorker API
-      const swSelf = self as unknown as ServiceWorkerGlobalScope;
-      const clients = await swSelf.clients.matchAll({ type: 'window' });
+      const clients = await this.swSelf.clients.matchAll({ type: 'window' });
      logger.log('info', `Found ${clients.length} clients to reload`);
-      
+
+      // Update metrics with current client count
+      const metrics = getMetricsCollector();
+      metrics.setConnectedClients(clients.length);
+
      for (const client of clients) {
        if ('navigate' in client) {
          // For modern browsers, navigate to the same URL to trigger reload
--- a/ts_web_serviceworker/classes.cachemanager.ts
+++ b/ts_web_serviceworker/classes.cachemanager.ts
@@ -2,6 +2,10 @@ import * as plugins from './plugins.js';
 import * as interfaces from './env.js';
 import { logger } from './logging.js';
 import { ServiceWorker } from './classes.serviceworker.js';
+import { getMetricsCollector } from './classes.metrics.js';
+import { getEventBus, ServiceWorkerEvent } from './classes.eventbus.js';
+import { getErrorHandler, ServiceWorkerErrorType } from './classes.errorhandler.js';
+import { getDashboardGenerator } from './classes.dashboard.js';

 export class CacheManager {
  public losslessServiceWorkerRef: ServiceWorker;
@@ -10,9 +14,113 @@ export class CacheManager {
    runtimeCacheName: 'runtime'
  };

+  // Request deduplication: tracks in-flight requests to prevent duplicate fetches
+  private inFlightRequests: Map<string, Promise<Response>> = new Map();
+  private readonly INFLIGHT_CLEANUP_INTERVAL = 30000; // 30 seconds
+  private cleanupIntervalId: ReturnType<typeof setInterval> | null = null;
+
  constructor(losslessServiceWorkerRefArg: ServiceWorker) {
    this.losslessServiceWorkerRef = losslessServiceWorkerRefArg;
    this._setupCache();
+    this._setupInFlightCleanup();
+  }
+
+  /**
+   * Sets up periodic cleanup of stale in-flight request entries
+   */
+  private _setupInFlightCleanup(): void {
+    // Clean up stale entries periodically
+    this.cleanupIntervalId = setInterval(() => {
+      // The Map should naturally clean up via .finally(), but this is a safety net
+      if (this.inFlightRequests.size > 100) {
+        logger.log('warn', `In-flight requests map has ${this.inFlightRequests.size} entries, clearing...`);
+        this.inFlightRequests.clear();
+      }
+    }, this.INFLIGHT_CLEANUP_INTERVAL);
+  }
+
+  /**
+   * Fetches a request with deduplication - coalesces identical concurrent requests
+   */
+  private async fetchWithDeduplication(request: Request): Promise<Response> {
+    const key = `${request.method}:${request.url}`;
+    const metrics = getMetricsCollector();
+    const eventBus = getEventBus();
+
+    // Check if we already have an in-flight request for this URL
+    const existingRequest = this.inFlightRequests.get(key);
+    if (existingRequest) {
+      logger.log('note', `Deduplicating request for ${request.url}`);
+      try {
+        const response = await existingRequest;
+        // Clone the response since it may have been consumed
+        return response.clone();
+      } catch (error) {
+        // If the original request failed, we should try again
+        this.inFlightRequests.delete(key);
+        throw error;
+      }
+    }
+
+    // Record the new request
+    metrics.recordRequest(request.url);
+    eventBus.emit(ServiceWorkerEvent.NETWORK_REQUEST_START, {
+      url: request.url,
+      method: request.method,
+    });
+
+    const startTime = Date.now();
+
+    // Create a new fetch promise and track it
+    const fetchPromise = fetch(request)
+      .then(async (response) => {
+        const duration = Date.now() - startTime;
+
+        // Try to get response size
+        const contentLength = response.headers.get('content-length');
+        const bytes = contentLength ? parseInt(contentLength, 10) : 0;
+
+        metrics.recordRequestSuccess(request.url, duration, bytes);
+        eventBus.emit(ServiceWorkerEvent.NETWORK_REQUEST_COMPLETE, {
+          url: request.url,
+          method: request.method,
+          status: response.status,
+          duration,
+          bytes,
+        });
+
+        return response;
+      })
+      .catch((error) => {
+        const duration = Date.now() - startTime;
+        const errorHandler = getErrorHandler();
+
+        errorHandler.handleNetworkError(
+          `Fetch failed for ${request.url}: ${error?.message || error}`,
+          request.url,
+          error instanceof Error ? error : undefined,
+          { method: request.method, duration }
+        );
+
+        metrics.recordRequestFailure(request.url, error?.message);
+        eventBus.emit(ServiceWorkerEvent.NETWORK_REQUEST_ERROR, {
+          url: request.url,
+          method: request.method,
+          duration,
+          error: error?.message || 'Unknown error',
+        });
+
+        throw error;
+      })
+      .finally(() => {
+        // Remove from in-flight requests when done
+        this.inFlightRequests.delete(key);
+      });
+
+    // Track the in-flight request
+    this.inFlightRequests.set(key, fetchPromise);
+
+    return fetchPromise;
  }

  /**
@@ -96,6 +204,23 @@ export class CacheManager {
        const originalRequest: Request = fetchEventArg.request;
        const parsedUrl = new URL(originalRequest.url);

+        // Handle dashboard routes - serve directly from service worker
+        if (parsedUrl.pathname === '/sw-dash' || parsedUrl.pathname === '/sw-dash/') {
+          const dashboard = getDashboardGenerator();
+          fetchEventArg.respondWith(Promise.resolve(dashboard.serveDashboard()));
+          return;
+        }
+        if (parsedUrl.pathname === '/sw-dash/metrics') {
+          const dashboard = getDashboardGenerator();
+          fetchEventArg.respondWith(Promise.resolve(dashboard.serveMetrics()));
+          return;
+        }
+        if (parsedUrl.pathname === '/sw-dash/speedtest') {
+          const dashboard = getDashboardGenerator();
+          fetchEventArg.respondWith(dashboard.runSpeedtest());
+          return;
+        }
+
        // Block requests that we don't want the service worker to handle.
        if (
          parsedUrl.hostname.includes('paddle.com') ||
@@ -128,16 +253,30 @@ export class CacheManager {

          const matchRequest = createMatchRequest(originalRequest);
          const cachedResponse = await caches.match(matchRequest);
+          const metrics = getMetricsCollector();
+          const eventBus = getEventBus();
+
          if (cachedResponse) {
+            // Record cache hit
+            const contentLength = cachedResponse.headers.get('content-length');
+            const bytes = contentLength ? parseInt(contentLength, 10) : 0;
+            metrics.recordCacheHit(matchRequest.url, bytes);
+            eventBus.emitCacheHit(matchRequest.url, bytes);
+
            logger.log('ok', `CACHED: Found cached response for ${matchRequest.url}`);
            done.resolve(cachedResponse);
            return;
          }

+          // Record cache miss
+          metrics.recordCacheMiss(matchRequest.url);
+          eventBus.emitCacheMiss(matchRequest.url);
+
          logger.log('info', `NOTYETCACHED: Trying to cache ${matchRequest.url}`);
          let newResponse: Response;
          try {
-            newResponse = await fetch(matchRequest);
+            // Use deduplicated fetch to prevent concurrent requests for the same resource
+            newResponse = await this.fetchWithDeduplication(matchRequest);
          } catch (err: any) {
            logger.log('error', `Fetch error for ${matchRequest.url}: ${err}`);
            newResponse = await create500Response(matchRequest, new Response(err.message));
--- a/ts_web_serviceworker/classes.config.ts
+++ b/ts_web_serviceworker/classes.config.ts
@@ -0,0 +1,232 @@
+import * as plugins from './plugins.js';
+
+/**
+ * Configuration interface for service worker settings
+ */
+export interface IServiceWorkerConfig {
+  // Cache settings
+  cache: {
+    maxAge: number;           // Maximum cache age in milliseconds (default: 24 hours)
+    offlineGracePeriod: number; // Grace period when offline (default: 7 days)
+    runtimeCacheName: string;   // Name of the runtime cache
+  };
+
+  // Update check settings
+  update: {
+    minCheckInterval: number;   // Minimum interval between update checks (default: 100 seconds)
+    debounceTime: number;       // Debounce time for update tasks (default: 2000ms)
+    revalidationDebounce: number; // Debounce time for revalidation (default: 6000ms)
+  };
+
+  // Network settings
+  network: {
+    requestTimeout: number;     // Default request timeout (default: 5000ms)
+    maxRetries: number;         // Maximum retry attempts (default: 3)
+    retryDelay: number;         // Delay between retries (default: 1000ms)
+  };
+
+  // Blocked domains - requests to these domains bypass the service worker
+  blockedDomains: string[];
+
+  // Blocked paths - requests with these path prefixes bypass the service worker
+  blockedPaths: string[];
+
+  // External cacheable domains - external domains that should be cached
+  cacheableDomains: string[];
+}
+
+/**
+ * Default configuration values
+ */
+const DEFAULT_CONFIG: IServiceWorkerConfig = {
+  cache: {
+    maxAge: 24 * 60 * 60 * 1000, // 24 hours
+    offlineGracePeriod: 7 * 24 * 60 * 60 * 1000, // 7 days
+    runtimeCacheName: 'runtime',
+  },
+  update: {
+    minCheckInterval: 100000, // 100 seconds
+    debounceTime: 2000,
+    revalidationDebounce: 6000,
+  },
+  network: {
+    requestTimeout: 5000,
+    maxRetries: 3,
+    retryDelay: 1000,
+  },
+  blockedDomains: [
+    'paddle.com',
+    'paypal.com',
+    'reception.lossless.one',
+    'umami.',
+  ],
+  blockedPaths: [
+    '/socket.io',
+    '/api/',
+    'smartserve/reloadcheck',
+  ],
+  cacheableDomains: [
+    'assetbroker.',
+    'unpkg.com',
+    'fonts.googleapis.com',
+    'fonts.gstatic.com',
+  ],
+};
+
+/**
+ * ServiceWorkerConfig manages the configuration for the service worker.
+ * Configuration is persisted to WebStore and can be updated at runtime.
+ */
+export class ServiceWorkerConfig {
+  private static readonly STORE_KEY = 'sw_config';
+  private config: IServiceWorkerConfig;
+  private store: plugins.webstore.WebStore;
+
+  constructor(store: plugins.webstore.WebStore) {
+    this.store = store;
+    this.config = { ...DEFAULT_CONFIG };
+  }
+
+  /**
+   * Loads configuration from WebStore, falling back to defaults
+   */
+  public async load(): Promise<void> {
+    try {
+      if (await this.store.check(ServiceWorkerConfig.STORE_KEY)) {
+        const storedConfig = await this.store.get(ServiceWorkerConfig.STORE_KEY);
+        this.config = this.mergeConfig(DEFAULT_CONFIG, storedConfig);
+      }
+    } catch (error) {
+      console.warn('Failed to load service worker config, using defaults:', error);
+      this.config = { ...DEFAULT_CONFIG };
+    }
+  }
+
+  /**
+   * Saves current configuration to WebStore
+   */
+  public async save(): Promise<void> {
+    await this.store.set(ServiceWorkerConfig.STORE_KEY, this.config);
+  }
+
+  /**
+   * Gets the current configuration
+   */
+  public get(): IServiceWorkerConfig {
+    return this.config;
+  }
+
+  /**
+   * Updates configuration with partial values
+   */
+  public async update(partialConfig: Partial<IServiceWorkerConfig>): Promise<void> {
+    this.config = this.mergeConfig(this.config, partialConfig);
+    await this.save();
+  }
+
+  /**
+   * Resets configuration to defaults
+   */
+  public async reset(): Promise<void> {
+    this.config = { ...DEFAULT_CONFIG };
+    await this.save();
+  }
+
+  // Getters for common configuration values
+  public get cacheMaxAge(): number {
+    return this.config.cache.maxAge;
+  }
+
+  public get offlineGracePeriod(): number {
+    return this.config.cache.offlineGracePeriod;
+  }
+
+  public get runtimeCacheName(): string {
+    return this.config.cache.runtimeCacheName;
+  }
+
+  public get minCheckInterval(): number {
+    return this.config.update.minCheckInterval;
+  }
+
+  public get updateDebounceTime(): number {
+    return this.config.update.debounceTime;
+  }
+
+  public get revalidationDebounce(): number {
+    return this.config.update.revalidationDebounce;
+  }
+
+  public get requestTimeout(): number {
+    return this.config.network.requestTimeout;
+  }
+
+  public get maxRetries(): number {
+    return this.config.network.maxRetries;
+  }
+
+  public get retryDelay(): number {
+    return this.config.network.retryDelay;
+  }
+
+  /**
+   * Checks if a URL should be blocked from service worker handling
+   */
+  public shouldBlockUrl(url: string): boolean {
+    try {
+      const parsedUrl = new URL(url);
+
+      // Check blocked domains
+      for (const domain of this.config.blockedDomains) {
+        if (parsedUrl.hostname.includes(domain)) {
+          return true;
+        }
+      }
+
+      // Check blocked paths
+      for (const path of this.config.blockedPaths) {
+        if (parsedUrl.pathname.includes(path)) {
+          return true;
+        }
+      }
+
+      // Check if URL starts with blocked domain pattern
+      if (url.startsWith('https://umami.')) {
+        return true;
+      }
+
+      return false;
+    } catch {
+      return false;
+    }
+  }
+
+  /**
+   * Checks if an external URL should be cached
+   */
+  public shouldCacheExternalUrl(url: string): boolean {
+    for (const domain of this.config.cacheableDomains) {
+      if (url.includes(domain)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  /**
+   * Deep merges two configuration objects
+   */
+  private mergeConfig(
+    base: IServiceWorkerConfig,
+    override: Partial<IServiceWorkerConfig>
+  ): IServiceWorkerConfig {
+    return {
+      cache: { ...base.cache, ...override.cache },
+      update: { ...base.update, ...override.update },
+      network: { ...base.network, ...override.network },
+      blockedDomains: override.blockedDomains ?? base.blockedDomains,
+      blockedPaths: override.blockedPaths ?? base.blockedPaths,
+      cacheableDomains: override.cacheableDomains ?? base.cacheableDomains,
+    };
+  }
+}
--- a/ts_web_serviceworker/classes.dashboard.ts
+++ b/ts_web_serviceworker/classes.dashboard.ts
@@ -0,0 +1,819 @@
+import { getMetricsCollector } from './classes.metrics.js';
+import { getServiceWorkerInstance } from './index.js';
+import * as interfaces from './env.js';
+
+/**
+ * Dashboard generator that creates a terminal-like metrics display
+ * served directly from the service worker
+ */
+export class DashboardGenerator {
+  /**
+   * Serves the dashboard HTML page
+   */
+  public serveDashboard(): Response {
+    return new Response(this.generateDashboardHtml(), {
+      headers: {
+        'Content-Type': 'text/html; charset=utf-8',
+        'Cache-Control': 'no-store',
+      },
+    });
+  }
+
+  /**
+   * Serves the metrics JSON endpoint
+   */
+  public serveMetrics(): Response {
+    return new Response(this.generateMetricsJson(), {
+      headers: {
+        'Content-Type': 'application/json',
+        'Cache-Control': 'no-store',
+      },
+    });
+  }
+
+  /**
+   * Runs a speedtest and returns the results
+   */
+  public async runSpeedtest(): Promise<Response> {
+    const metrics = getMetricsCollector();
+    const results: {
+      latency?: { durationMs: number; speedMbps: number };
+      download?: { durationMs: number; speedMbps: number; bytesTransferred: number };
+      upload?: { durationMs: number; speedMbps: number; bytesTransferred: number };
+      error?: string;
+      isOnline: boolean;
+    } = { isOnline: false };
+
+    try {
+      const sw = getServiceWorkerInstance();
+
+      // Check if TypedSocket is connected
+      if (!sw.typedsocket) {
+        results.error = 'TypedSocket not connected';
+        return new Response(JSON.stringify(results), {
+          headers: {
+            'Content-Type': 'application/json',
+            'Cache-Control': 'no-store',
+          },
+        });
+      }
+
+      // Create typed request for speedtest
+      const speedtestRequest = sw.typedsocket.createTypedRequest<
+        interfaces.serviceworker.IRequest_Serviceworker_Speedtest
+      >('serviceworker_speedtest');
+
+      // Latency test
+      const latencyStart = Date.now();
+      await speedtestRequest.fire({ type: 'latency' });
+      const latencyDuration = Date.now() - latencyStart;
+      results.latency = { durationMs: latencyDuration, speedMbps: 0 };
+      metrics.recordSpeedtest('latency', latencyDuration);
+      results.isOnline = true;
+      metrics.setOnlineStatus(true);
+
+      // Download test (100KB)
+      const downloadStart = Date.now();
+      const downloadResult = await speedtestRequest.fire({ type: 'download', payloadSizeKB: 100 });
+      const downloadDuration = Date.now() - downloadStart;
+      const bytesTransferred = downloadResult.payload?.length || 0;
+      const downloadSpeedMbps = downloadDuration > 0 ? (bytesTransferred * 8) / (downloadDuration * 1000) : 0;
+      results.download = { durationMs: downloadDuration, speedMbps: downloadSpeedMbps, bytesTransferred };
+      metrics.recordSpeedtest('download', downloadSpeedMbps);
+
+      // Upload test (100KB)
+      const uploadPayload = 'x'.repeat(100 * 1024);
+      const uploadStart = Date.now();
+      await speedtestRequest.fire({ type: 'upload', payload: uploadPayload });
+      const uploadDuration = Date.now() - uploadStart;
+      const uploadSpeedMbps = uploadDuration > 0 ? (uploadPayload.length * 8) / (uploadDuration * 1000) : 0;
+      results.upload = { durationMs: uploadDuration, speedMbps: uploadSpeedMbps, bytesTransferred: uploadPayload.length };
+      metrics.recordSpeedtest('upload', uploadSpeedMbps);
+
+    } catch (error) {
+      results.error = error instanceof Error ? error.message : String(error);
+      results.isOnline = false;
+      metrics.setOnlineStatus(false);
+    }
+
+    return new Response(JSON.stringify(results), {
+      headers: {
+        'Content-Type': 'application/json',
+        'Cache-Control': 'no-store',
+      },
+    });
+  }
+
+  /**
+   * Generates JSON metrics response
+   */
+  public generateMetricsJson(): string {
+    const metrics = getMetricsCollector();
+    return JSON.stringify({
+      ...metrics.getMetrics(),
+      cacheHitRate: metrics.getCacheHitRate(),
+      networkSuccessRate: metrics.getNetworkSuccessRate(),
+      summary: metrics.getSummary(),
+    });
+  }
+
+  /**
+   * Generates the complete HTML dashboard page with terminal-like styling
+   */
+  public generateDashboardHtml(): string {
+    const metrics = getMetricsCollector();
+    const data = metrics.getMetrics();
+    const hitRate = metrics.getCacheHitRate();
+    const successRate = metrics.getNetworkSuccessRate();
+
+    return `<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  <title>SW Dashboard</title>
+  <style>
+    * {
+      margin: 0;
+      padding: 0;
+      box-sizing: border-box;
+    }
+
+    body {
+      background: #0a0a0a;
+      color: #00ff00;
+      font-family: 'Courier New', Courier, monospace;
+      font-size: 14px;
+      line-height: 1.4;
+      padding: 20px;
+      min-height: 100vh;
+    }
+
+    .terminal {
+      max-width: 900px;
+      margin: 0 auto;
+      border: 1px solid #00ff00;
+      background: #0d0d0d;
+      box-shadow: 0 0 20px rgba(0, 255, 0, 0.1);
+    }
+
+    .header {
+      border-bottom: 1px solid #00ff00;
+      padding: 10px 15px;
+      display: flex;
+      justify-content: space-between;
+      align-items: center;
+      background: #111;
+    }
+
+    .title {
+      color: #00ff00;
+      font-weight: bold;
+      font-size: 16px;
+    }
+
+    .uptime {
+      color: #888;
+    }
+
+    .content {
+      padding: 15px;
+    }
+
+    .grid {
+      display: grid;
+      grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
+      gap: 15px;
+    }
+
+    .panel {
+      border: 1px solid #333;
+      padding: 12px;
+      background: #0a0a0a;
+    }
+
+    .panel-title {
+      color: #00ffff;
+      font-weight: bold;
+      margin-bottom: 10px;
+      padding-bottom: 5px;
+      border-bottom: 1px dashed #333;
+    }
+
+    .row {
+      display: flex;
+      justify-content: space-between;
+      padding: 3px 0;
+    }
+
+    .label {
+      color: #888;
+    }
+
+    .value {
+      color: #00ff00;
+    }
+
+    .value.warning {
+      color: #ffff00;
+    }
+
+    .value.error {
+      color: #ff4444;
+    }
+
+    .value.success {
+      color: #00ff00;
+    }
+
+    .gauge {
+      margin: 8px 0;
+    }
+
+    .gauge-bar {
+      height: 16px;
+      background: #1a1a1a;
+      border: 1px solid #333;
+      position: relative;
+      font-size: 12px;
+    }
+
+    .gauge-fill {
+      height: 100%;
+      transition: width 0.3s ease;
+    }
+
+    .gauge-fill.good {
+      background: #00aa00;
+    }
+
+    .gauge-fill.warning {
+      background: #aaaa00;
+    }
+
+    .gauge-fill.bad {
+      background: #aa0000;
+    }
+
+    .gauge-text {
+      position: absolute;
+      left: 50%;
+      top: 50%;
+      transform: translate(-50%, -50%);
+      color: #fff;
+      font-weight: bold;
+      text-shadow: 1px 1px 2px #000;
+    }
+
+    .footer {
+      border-top: 1px solid #00ff00;
+      padding: 10px 15px;
+      display: flex;
+      justify-content: space-between;
+      align-items: center;
+      background: #111;
+      font-size: 12px;
+    }
+
+    .refresh-info {
+      color: #888;
+    }
+
+    .status {
+      display: flex;
+      align-items: center;
+      gap: 8px;
+    }
+
+    .status-dot {
+      width: 8px;
+      height: 8px;
+      border-radius: 50%;
+      background: #00ff00;
+      animation: pulse 2s infinite;
+    }
+
+    @keyframes pulse {
+      0%, 100% { opacity: 1; }
+      50% { opacity: 0.5; }
+    }
+
+    .ascii-bar {
+      font-family: monospace;
+      letter-spacing: 0;
+    }
+
+    .prompt {
+      color: #00ff00;
+    }
+
+    .cursor {
+      display: inline-block;
+      width: 8px;
+      height: 14px;
+      background: #00ff00;
+      animation: blink 1s step-end infinite;
+      vertical-align: middle;
+      margin-left: 2px;
+    }
+
+    @keyframes blink {
+      50% { opacity: 0; }
+    }
+
+    .btn {
+      background: #1a1a1a;
+      border: 1px solid #00ff00;
+      color: #00ff00;
+      padding: 8px 16px;
+      cursor: pointer;
+      font-family: 'Courier New', Courier, monospace;
+      font-size: 12px;
+      transition: all 0.2s ease;
+    }
+
+    .btn:hover {
+      background: #00ff00;
+      color: #000;
+    }
+
+    .btn:disabled {
+      opacity: 0.5;
+      cursor: not-allowed;
+    }
+
+    .online-indicator {
+      display: flex;
+      align-items: center;
+      gap: 8px;
+      padding: 8px 0;
+      margin-bottom: 10px;
+      border-bottom: 1px dashed #333;
+    }
+
+    .online-dot {
+      width: 12px;
+      height: 12px;
+      border-radius: 50%;
+      transition: background-color 0.3s ease;
+    }
+
+    .online-dot.online {
+      background: #00ff00;
+      box-shadow: 0 0 8px rgba(0, 255, 0, 0.5);
+    }
+
+    .online-dot.offline {
+      background: #ff4444;
+      box-shadow: 0 0 8px rgba(255, 68, 68, 0.5);
+    }
+
+    .speedtest-results {
+      margin-top: 10px;
+    }
+
+    .speed-bar {
+      height: 8px;
+      background: #1a1a1a;
+      border: 1px solid #333;
+      margin: 4px 0;
+    }
+
+    .speed-fill {
+      height: 100%;
+      background: #00aa00;
+      transition: width 0.5s ease;
+    }
+
+    .btn-row {
+      display: flex;
+      justify-content: flex-end;
+      margin-top: 10px;
+    }
+  </style>
+</head>
+<body>
+  <div class="terminal">
+    <div class="header">
+      <span class="title">[SW-DASH] Service Worker Metrics</span>
+      <span class="uptime" id="uptime">Uptime: ${this.formatDuration(data.uptime)}</span>
+    </div>
+
+    <div class="content">
+      <div class="grid">
+        <div class="panel">
+          <div class="panel-title">[ CACHE ]</div>
+          <div class="gauge">
+            <div class="gauge-bar">
+              <div class="gauge-fill ${this.getGaugeClass(hitRate)}" style="width: ${hitRate}%"></div>
+              <span class="gauge-text">${hitRate}% hit rate</span>
+            </div>
+          </div>
+          <div class="row">
+            <span class="label">Hits:</span>
+            <span class="value success" id="cache-hits">${this.formatNumber(data.cache.hits)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Misses:</span>
+            <span class="value warning" id="cache-misses">${this.formatNumber(data.cache.misses)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Errors:</span>
+            <span class="value ${data.cache.errors > 0 ? 'error' : ''}" id="cache-errors">${this.formatNumber(data.cache.errors)}</span>
+          </div>
+          <div class="row">
+            <span class="label">From Cache:</span>
+            <span class="value" id="cache-bytes">${this.formatBytes(data.cache.bytesServedFromCache)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Fetched:</span>
+            <span class="value" id="cache-fetched">${this.formatBytes(data.cache.bytesFetched)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Avg Response:</span>
+            <span class="value" id="cache-response">${data.cache.averageResponseTime}ms</span>
+          </div>
+        </div>
+
+        <div class="panel">
+          <div class="panel-title">[ NETWORK ]</div>
+          <div class="gauge">
+            <div class="gauge-bar">
+              <div class="gauge-fill ${this.getGaugeClass(successRate)}" style="width: ${successRate}%"></div>
+              <span class="gauge-text">${successRate}% success</span>
+            </div>
+          </div>
+          <div class="row">
+            <span class="label">Total Requests:</span>
+            <span class="value" id="net-total">${this.formatNumber(data.network.totalRequests)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Successful:</span>
+            <span class="value success" id="net-success">${this.formatNumber(data.network.successfulRequests)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Failed:</span>
+            <span class="value ${data.network.failedRequests > 0 ? 'error' : ''}" id="net-failed">${this.formatNumber(data.network.failedRequests)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Timeouts:</span>
+            <span class="value ${data.network.timeouts > 0 ? 'warning' : ''}" id="net-timeouts">${this.formatNumber(data.network.timeouts)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Avg Latency:</span>
+            <span class="value" id="net-latency">${data.network.averageLatency}ms</span>
+          </div>
+          <div class="row">
+            <span class="label">Transferred:</span>
+            <span class="value" id="net-bytes">${this.formatBytes(data.network.totalBytesTransferred)}</span>
+          </div>
+        </div>
+
+        <div class="panel">
+          <div class="panel-title">[ UPDATES ]</div>
+          <div class="row">
+            <span class="label">Total Checks:</span>
+            <span class="value" id="upd-checks">${this.formatNumber(data.update.totalChecks)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Successful:</span>
+            <span class="value success" id="upd-success">${this.formatNumber(data.update.successfulChecks)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Failed:</span>
+            <span class="value ${data.update.failedChecks > 0 ? 'error' : ''}" id="upd-failed">${this.formatNumber(data.update.failedChecks)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Updates Found:</span>
+            <span class="value" id="upd-found">${this.formatNumber(data.update.updatesFound)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Updates Applied:</span>
+            <span class="value success" id="upd-applied">${this.formatNumber(data.update.updatesApplied)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Last Check:</span>
+            <span class="value" id="upd-last-check">${this.formatTimestamp(data.update.lastCheckTimestamp)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Last Update:</span>
+            <span class="value" id="upd-last-update">${this.formatTimestamp(data.update.lastUpdateTimestamp)}</span>
+          </div>
+        </div>
+
+        <div class="panel">
+          <div class="panel-title">[ CONNECTIONS ]</div>
+          <div class="row">
+            <span class="label">Active Clients:</span>
+            <span class="value success" id="conn-clients">${this.formatNumber(data.connection.connectedClients)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Total Attempts:</span>
+            <span class="value" id="conn-attempts">${this.formatNumber(data.connection.totalConnectionAttempts)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Successful:</span>
+            <span class="value success" id="conn-success">${this.formatNumber(data.connection.successfulConnections)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Failed:</span>
+            <span class="value ${data.connection.failedConnections > 0 ? 'error' : ''}" id="conn-failed">${this.formatNumber(data.connection.failedConnections)}</span>
+          </div>
+          <div class="row" style="margin-top: 15px; padding-top: 10px; border-top: 1px dashed #333;">
+            <span class="label">Started:</span>
+            <span class="value" id="start-time">${this.formatTimestamp(data.startTime)}</span>
+          </div>
+        </div>
+
+        <div class="panel">
+          <div class="panel-title">[ SPEEDTEST ]</div>
+          <div class="online-indicator">
+            <span class="online-dot ${data.speedtest.isOnline ? 'online' : 'offline'}" id="online-dot"></span>
+            <span class="value ${data.speedtest.isOnline ? 'success' : 'error'}" id="online-status">${data.speedtest.isOnline ? 'Online' : 'Offline'}</span>
+          </div>
+          <div class="row">
+            <span class="label">Download:</span>
+            <span class="value" id="speed-download">${data.speedtest.lastDownloadSpeedMbps.toFixed(2)} Mbps</span>
+          </div>
+          <div class="speed-bar">
+            <div class="speed-fill" id="speed-download-bar" style="width: ${Math.min(data.speedtest.lastDownloadSpeedMbps, 100)}%"></div>
+          </div>
+          <div class="row">
+            <span class="label">Upload:</span>
+            <span class="value" id="speed-upload">${data.speedtest.lastUploadSpeedMbps.toFixed(2)} Mbps</span>
+          </div>
+          <div class="speed-bar">
+            <div class="speed-fill" id="speed-upload-bar" style="width: ${Math.min(data.speedtest.lastUploadSpeedMbps, 100)}%"></div>
+          </div>
+          <div class="row">
+            <span class="label">Latency:</span>
+            <span class="value" id="speed-latency">${data.speedtest.lastLatencyMs.toFixed(0)} ms</span>
+          </div>
+          <div class="row">
+            <span class="label">Last Test:</span>
+            <span class="value" id="speed-last-test">${this.formatTimestamp(data.speedtest.lastTestTimestamp)}</span>
+          </div>
+          <div class="row">
+            <span class="label">Test Count:</span>
+            <span class="value" id="speed-test-count">${data.speedtest.testCount}</span>
+          </div>
+          <div class="btn-row">
+            <button class="btn" id="run-speedtest" onclick="runSpeedtest()">Run Test</button>
+          </div>
+        </div>
+      </div>
+    </div>
+
+    <div class="footer">
+      <span class="refresh-info">
+        <span class="prompt">$</span> Last refresh: <span id="last-refresh">${new Date().toLocaleTimeString()}</span><span class="cursor"></span>
+      </span>
+      <div class="status">
+        <span class="status-dot"></span>
+        <span>Auto-refresh: 2s</span>
+      </div>
+    </div>
+  </div>
+
+  <script>
+    function formatNumber(num) {
+      return num.toLocaleString();
+    }
+
+    function formatBytes(bytes) {
+      if (bytes === 0) return '0 B';
+      const k = 1024;
+      const sizes = ['B', 'KB', 'MB', 'GB'];
+      const i = Math.floor(Math.log(bytes) / Math.log(k));
+      return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
+    }
+
+    function formatDuration(ms) {
+      const seconds = Math.floor(ms / 1000);
+      const minutes = Math.floor(seconds / 60);
+      const hours = Math.floor(minutes / 60);
+      const days = Math.floor(hours / 24);
+
+      if (days > 0) return days + 'd ' + (hours % 24) + 'h';
+      if (hours > 0) return hours + 'h ' + (minutes % 60) + 'm';
+      if (minutes > 0) return minutes + 'm ' + (seconds % 60) + 's';
+      return seconds + 's';
+    }
+
+    function formatTimestamp(ts) {
+      if (!ts || ts === 0) return 'never';
+      const ago = Date.now() - ts;
+      if (ago < 60000) return Math.floor(ago / 1000) + 's ago';
+      if (ago < 3600000) return Math.floor(ago / 60000) + 'm ago';
+      if (ago < 86400000) return Math.floor(ago / 3600000) + 'h ago';
+      return new Date(ts).toLocaleDateString();
+    }
+
+    function getGaugeClass(rate) {
+      if (rate >= 80) return 'good';
+      if (rate >= 50) return 'warning';
+      return 'bad';
+    }
+
+    function updateDashboard(data) {
+      // Uptime
+      document.getElementById('uptime').textContent = 'Uptime: ' + formatDuration(data.uptime);
+
+      // Cache
+      document.getElementById('cache-hits').textContent = formatNumber(data.cache.hits);
+      document.getElementById('cache-misses').textContent = formatNumber(data.cache.misses);
+      document.getElementById('cache-errors').textContent = formatNumber(data.cache.errors);
+      document.getElementById('cache-bytes').textContent = formatBytes(data.cache.bytesServedFromCache);
+      document.getElementById('cache-fetched').textContent = formatBytes(data.cache.bytesFetched);
+      document.getElementById('cache-response').textContent = data.cache.averageResponseTime + 'ms';
+
+      // Update cache gauge
+      const cacheGauge = document.querySelector('.panel:nth-child(1) .gauge-fill');
+      cacheGauge.style.width = data.cacheHitRate + '%';
+      cacheGauge.className = 'gauge-fill ' + getGaugeClass(data.cacheHitRate);
+      document.querySelector('.panel:nth-child(1) .gauge-text').textContent = data.cacheHitRate + '% hit rate';
+
+      // Network
+      document.getElementById('net-total').textContent = formatNumber(data.network.totalRequests);
+      document.getElementById('net-success').textContent = formatNumber(data.network.successfulRequests);
+      document.getElementById('net-failed').textContent = formatNumber(data.network.failedRequests);
+      document.getElementById('net-timeouts').textContent = formatNumber(data.network.timeouts);
+      document.getElementById('net-latency').textContent = data.network.averageLatency + 'ms';
+      document.getElementById('net-bytes').textContent = formatBytes(data.network.totalBytesTransferred);
+
+      // Update network gauge
+      const netGauge = document.querySelector('.panel:nth-child(2) .gauge-fill');
+      netGauge.style.width = data.networkSuccessRate + '%';
+      netGauge.className = 'gauge-fill ' + getGaugeClass(data.networkSuccessRate);
+      document.querySelector('.panel:nth-child(2) .gauge-text').textContent = data.networkSuccessRate + '% success';
+
+      // Updates
+      document.getElementById('upd-checks').textContent = formatNumber(data.update.totalChecks);
+      document.getElementById('upd-success').textContent = formatNumber(data.update.successfulChecks);
+      document.getElementById('upd-failed').textContent = formatNumber(data.update.failedChecks);
+      document.getElementById('upd-found').textContent = formatNumber(data.update.updatesFound);
+      document.getElementById('upd-applied').textContent = formatNumber(data.update.updatesApplied);
+      document.getElementById('upd-last-check').textContent = formatTimestamp(data.update.lastCheckTimestamp);
+      document.getElementById('upd-last-update').textContent = formatTimestamp(data.update.lastUpdateTimestamp);
+
+      // Connections
+      document.getElementById('conn-clients').textContent = formatNumber(data.connection.connectedClients);
+      document.getElementById('conn-attempts').textContent = formatNumber(data.connection.totalConnectionAttempts);
+      document.getElementById('conn-success').textContent = formatNumber(data.connection.successfulConnections);
+      document.getElementById('conn-failed').textContent = formatNumber(data.connection.failedConnections);
+      document.getElementById('start-time').textContent = formatTimestamp(data.startTime);
+
+      // Speedtest
+      if (data.speedtest) {
+        const onlineDot = document.getElementById('online-dot');
+        const onlineStatus = document.getElementById('online-status');
+        onlineDot.className = 'online-dot ' + (data.speedtest.isOnline ? 'online' : 'offline');
+        onlineStatus.textContent = data.speedtest.isOnline ? 'Online' : 'Offline';
+        onlineStatus.className = 'value ' + (data.speedtest.isOnline ? 'success' : 'error');
+
+        document.getElementById('speed-download').textContent = data.speedtest.lastDownloadSpeedMbps.toFixed(2) + ' Mbps';
+        document.getElementById('speed-upload').textContent = data.speedtest.lastUploadSpeedMbps.toFixed(2) + ' Mbps';
+        document.getElementById('speed-latency').textContent = data.speedtest.lastLatencyMs.toFixed(0) + ' ms';
+        document.getElementById('speed-last-test').textContent = formatTimestamp(data.speedtest.lastTestTimestamp);
+        document.getElementById('speed-test-count').textContent = formatNumber(data.speedtest.testCount);
+
+        // Update speed bars (max 100 Mbps for visualization)
+        document.getElementById('speed-download-bar').style.width = Math.min(data.speedtest.lastDownloadSpeedMbps, 100) + '%';
+        document.getElementById('speed-upload-bar').style.width = Math.min(data.speedtest.lastUploadSpeedMbps, 100) + '%';
+      }
+
+      // Last refresh
+      document.getElementById('last-refresh').textContent = new Date().toLocaleTimeString();
+    }
+
+    // Speedtest function
+    let speedtestRunning = false;
+    async function runSpeedtest() {
+      if (speedtestRunning) return;
+
+      speedtestRunning = true;
+      const btn = document.getElementById('run-speedtest');
+      const originalText = btn.textContent;
+      btn.textContent = 'Testing...';
+      btn.disabled = true;
+
+      try {
+        const response = await fetch('/sw-dash/speedtest');
+        const result = await response.json();
+
+        // Update online status immediately
+        const onlineDot = document.getElementById('online-dot');
+        const onlineStatus = document.getElementById('online-status');
+        onlineDot.className = 'online-dot ' + (result.isOnline ? 'online' : 'offline');
+        onlineStatus.textContent = result.isOnline ? 'Online' : 'Offline';
+        onlineStatus.className = 'value ' + (result.isOnline ? 'success' : 'error');
+
+        if (result.download) {
+          document.getElementById('speed-download').textContent = result.download.speedMbps.toFixed(2) + ' Mbps';
+          document.getElementById('speed-download-bar').style.width = Math.min(result.download.speedMbps, 100) + '%';
+        }
+        if (result.upload) {
+          document.getElementById('speed-upload').textContent = result.upload.speedMbps.toFixed(2) + ' Mbps';
+          document.getElementById('speed-upload-bar').style.width = Math.min(result.upload.speedMbps, 100) + '%';
+        }
+        if (result.latency) {
+          document.getElementById('speed-latency').textContent = result.latency.durationMs.toFixed(0) + ' ms';
+        }
+        document.getElementById('speed-last-test').textContent = 'just now';
+
+        if (result.error) {
+          console.error('Speedtest error:', result.error);
+        }
+      } catch (err) {
+        console.error('Failed to run speedtest:', err);
+        // Mark as offline on error
+        const onlineDot = document.getElementById('online-dot');
+        const onlineStatus = document.getElementById('online-status');
+        onlineDot.className = 'online-dot offline';
+        onlineStatus.textContent = 'Offline';
+        onlineStatus.className = 'value error';
+      } finally {
+        speedtestRunning = false;
+        btn.textContent = originalText;
+        btn.disabled = false;
+      }
+    }
+
+    // Auto-refresh every 2 seconds
+    setInterval(async () => {
+      try {
+        const response = await fetch('/sw-dash/metrics');
+        const data = await response.json();
+        updateDashboard(data);
+      } catch (err) {
+        console.error('Failed to fetch metrics:', err);
+      }
+    }, 2000);
+  </script>
+</body>
+</html>`;
+  }
+
+  /**
+   * Format bytes to human-readable string
+   */
+  private formatBytes(bytes: number): string {
+    if (bytes === 0) return '0 B';
+    const k = 1024;
+    const sizes = ['B', 'KB', 'MB', 'GB'];
+    const i = Math.floor(Math.log(bytes) / Math.log(k));
+    return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i];
+  }
+
+  /**
+   * Format duration to human-readable string
+   */
+  private formatDuration(ms: number): string {
+    const seconds = Math.floor(ms / 1000);
+    const minutes = Math.floor(seconds / 60);
+    const hours = Math.floor(minutes / 60);
+    const days = Math.floor(hours / 24);
+
+    if (days > 0) return `${days}d ${hours % 24}h`;
+    if (hours > 0) return `${hours}h ${minutes % 60}m`;
+    if (minutes > 0) return `${minutes}m ${seconds % 60}s`;
+    return `${seconds}s`;
+  }
+
+  /**
+   * Format timestamp to relative time string
+   */
+  private formatTimestamp(ts: number): string {
+    if (!ts || ts === 0) return 'never';
+    const ago = Date.now() - ts;
+    if (ago < 60000) return `${Math.floor(ago / 1000)}s ago`;
+    if (ago < 3600000) return `${Math.floor(ago / 60000)}m ago`;
+    if (ago < 86400000) return `${Math.floor(ago / 3600000)}h ago`;
+    return new Date(ts).toLocaleDateString();
+  }
+
+  /**
+   * Format number with thousands separator
+   */
+  private formatNumber(num: number): string {
+    return num.toLocaleString();
+  }
+
+  /**
+   * Get gauge class based on percentage
+   */
+  private getGaugeClass(rate: number): string {
+    if (rate >= 80) return 'good';
+    if (rate >= 50) return 'warning';
+    return 'bad';
+  }
+}
+
+// Export singleton getter
+let dashboardInstance: DashboardGenerator | null = null;
+export const getDashboardGenerator = (): DashboardGenerator => {
+  if (!dashboardInstance) {
+    dashboardInstance = new DashboardGenerator();
+  }
+  return dashboardInstance;
+};
--- a/ts_web_serviceworker/classes.errorhandler.ts
+++ b/ts_web_serviceworker/classes.errorhandler.ts
@@ -0,0 +1,333 @@
+import { logger } from './logging.js';
+
+/**
+ * Error types for categorizing service worker errors
+ */
+export enum ServiceWorkerErrorType {
+  NETWORK = 'NETWORK',
+  CACHE = 'CACHE',
+  UPDATE = 'UPDATE',
+  CONNECTION = 'CONNECTION',
+  TIMEOUT = 'TIMEOUT',
+  UNKNOWN = 'UNKNOWN',
+}
+
+/**
+ * Error severity levels
+ */
+export enum ErrorSeverity {
+  DEBUG = 'debug',
+  INFO = 'info',
+  WARN = 'warn',
+  ERROR = 'error',
+  FATAL = 'fatal',
+}
+
+/**
+ * Interface for error context
+ */
+export interface IErrorContext {
+  url?: string;
+  method?: string;
+  statusCode?: number;
+  attempt?: number;
+  maxAttempts?: number;
+  duration?: number;
+  componentName?: string;
+  additionalInfo?: Record<string, unknown>;
+}
+
+/**
+ * Service Worker Error class with type categorization and context
+ */
+export class ServiceWorkerError extends Error {
+  public readonly type: ServiceWorkerErrorType;
+  public readonly severity: ErrorSeverity;
+  public readonly context: IErrorContext;
+  public readonly timestamp: number;
+  public readonly originalError?: Error;
+
+  constructor(
+    message: string,
+    type: ServiceWorkerErrorType = ServiceWorkerErrorType.UNKNOWN,
+    severity: ErrorSeverity = ErrorSeverity.ERROR,
+    context: IErrorContext = {},
+    originalError?: Error
+  ) {
+    super(message);
+    this.name = 'ServiceWorkerError';
+    this.type = type;
+    this.severity = severity;
+    this.context = context;
+    this.timestamp = Date.now();
+    this.originalError = originalError;
+
+    // Maintain proper stack trace in V8 environments
+    if (Error.captureStackTrace) {
+      Error.captureStackTrace(this, ServiceWorkerError);
+    }
+  }
+
+  /**
+   * Creates a formatted log message
+   */
+  public toLogMessage(): string {
+    const parts = [
+      `[${this.type}]`,
+      this.message,
+    ];
+
+    if (this.context.url) {
+      parts.push(`URL: ${this.context.url}`);
+    }
+    if (this.context.method) {
+      parts.push(`Method: ${this.context.method}`);
+    }
+    if (this.context.statusCode !== undefined) {
+      parts.push(`Status: ${this.context.statusCode}`);
+    }
+    if (this.context.attempt !== undefined && this.context.maxAttempts !== undefined) {
+      parts.push(`Attempt: ${this.context.attempt}/${this.context.maxAttempts}`);
+    }
+    if (this.context.duration !== undefined) {
+      parts.push(`Duration: ${this.context.duration}ms`);
+    }
+
+    return parts.join(' | ');
+  }
+
+  /**
+   * Converts to a plain object for serialization
+   */
+  public toJSON(): Record<string, unknown> {
+    return {
+      name: this.name,
+      message: this.message,
+      type: this.type,
+      severity: this.severity,
+      context: this.context,
+      timestamp: this.timestamp,
+      stack: this.stack,
+      originalError: this.originalError?.message,
+    };
+  }
+}
+
+/**
+ * Error handler for consistent error handling across service worker components
+ */
+export class ErrorHandler {
+  private static instance: ErrorHandler;
+  private errorHistory: ServiceWorkerError[] = [];
+  private readonly maxHistorySize = 100;
+
+  private constructor() {}
+
+  /**
+   * Gets the singleton instance
+   */
+  public static getInstance(): ErrorHandler {
+    if (!ErrorHandler.instance) {
+      ErrorHandler.instance = new ErrorHandler();
+    }
+    return ErrorHandler.instance;
+  }
+
+  /**
+   * Handles an error with consistent logging and tracking
+   */
+  public handle(
+    error: Error | ServiceWorkerError | string,
+    type: ServiceWorkerErrorType = ServiceWorkerErrorType.UNKNOWN,
+    severity: ErrorSeverity = ErrorSeverity.ERROR,
+    context: IErrorContext = {}
+  ): ServiceWorkerError {
+    let swError: ServiceWorkerError;
+
+    if (error instanceof ServiceWorkerError) {
+      swError = error;
+    } else if (error instanceof Error) {
+      swError = new ServiceWorkerError(error.message, type, severity, context, error);
+    } else {
+      swError = new ServiceWorkerError(String(error), type, severity, context);
+    }
+
+    // Log the error
+    this.logError(swError);
+
+    // Track the error
+    this.trackError(swError);
+
+    return swError;
+  }
+
+  /**
+   * Creates and handles a network error
+   */
+  public handleNetworkError(
+    message: string,
+    url: string,
+    originalError?: Error,
+    context: Partial<IErrorContext> = {}
+  ): ServiceWorkerError {
+    return this.handle(
+      originalError || message,
+      ServiceWorkerErrorType.NETWORK,
+      ErrorSeverity.WARN,
+      { url, ...context }
+    );
+  }
+
+  /**
+   * Creates and handles a cache error
+   */
+  public handleCacheError(
+    message: string,
+    url?: string,
+    originalError?: Error,
+    context: Partial<IErrorContext> = {}
+  ): ServiceWorkerError {
+    return this.handle(
+      originalError || message,
+      ServiceWorkerErrorType.CACHE,
+      ErrorSeverity.ERROR,
+      { url, ...context }
+    );
+  }
+
+  /**
+   * Creates and handles an update error
+   */
+  public handleUpdateError(
+    message: string,
+    originalError?: Error,
+    context: Partial<IErrorContext> = {}
+  ): ServiceWorkerError {
+    return this.handle(
+      originalError || message,
+      ServiceWorkerErrorType.UPDATE,
+      ErrorSeverity.ERROR,
+      context
+    );
+  }
+
+  /**
+   * Creates and handles a connection error
+   */
+  public handleConnectionError(
+    message: string,
+    originalError?: Error,
+    context: Partial<IErrorContext> = {}
+  ): ServiceWorkerError {
+    return this.handle(
+      originalError || message,
+      ServiceWorkerErrorType.CONNECTION,
+      ErrorSeverity.WARN,
+      context
+    );
+  }
+
+  /**
+   * Creates and handles a timeout error
+   */
+  public handleTimeoutError(
+    message: string,
+    url?: string,
+    duration?: number,
+    context: Partial<IErrorContext> = {}
+  ): ServiceWorkerError {
+    return this.handle(
+      message,
+      ServiceWorkerErrorType.TIMEOUT,
+      ErrorSeverity.WARN,
+      { url, duration, ...context }
+    );
+  }
+
+  /**
+   * Gets the error history
+   */
+  public getErrorHistory(): ServiceWorkerError[] {
+    return [...this.errorHistory];
+  }
+
+  /**
+   * Gets errors by type
+   */
+  public getErrorsByType(type: ServiceWorkerErrorType): ServiceWorkerError[] {
+    return this.errorHistory.filter((e) => e.type === type);
+  }
+
+  /**
+   * Gets errors within a time range
+   */
+  public getRecentErrors(withinMs: number): ServiceWorkerError[] {
+    const cutoff = Date.now() - withinMs;
+    return this.errorHistory.filter((e) => e.timestamp >= cutoff);
+  }
+
+  /**
+   * Clears the error history
+   */
+  public clearHistory(): void {
+    this.errorHistory = [];
+  }
+
+  /**
+   * Gets error statistics
+   */
+  public getStats(): Record<ServiceWorkerErrorType, number> {
+    const stats: Record<ServiceWorkerErrorType, number> = {
+      [ServiceWorkerErrorType.NETWORK]: 0,
+      [ServiceWorkerErrorType.CACHE]: 0,
+      [ServiceWorkerErrorType.UPDATE]: 0,
+      [ServiceWorkerErrorType.CONNECTION]: 0,
+      [ServiceWorkerErrorType.TIMEOUT]: 0,
+      [ServiceWorkerErrorType.UNKNOWN]: 0,
+    };
+
+    for (const error of this.errorHistory) {
+      stats[error.type]++;
+    }
+
+    return stats;
+  }
+
+  /**
+   * Logs an error with the appropriate severity
+   */
+  private logError(error: ServiceWorkerError): void {
+    const logMessage = error.toLogMessage();
+
+    switch (error.severity) {
+      case ErrorSeverity.DEBUG:
+        logger.log('note', logMessage);
+        break;
+      case ErrorSeverity.INFO:
+        logger.log('info', logMessage);
+        break;
+      case ErrorSeverity.WARN:
+        logger.log('warn', logMessage);
+        break;
+      case ErrorSeverity.ERROR:
+      case ErrorSeverity.FATAL:
+        logger.log('error', logMessage);
+        break;
+    }
+  }
+
+  /**
+   * Tracks an error in the history
+   */
+  private trackError(error: ServiceWorkerError): void {
+    this.errorHistory.push(error);
+
+    // Trim history if needed
+    if (this.errorHistory.length > this.maxHistorySize) {
+      this.errorHistory = this.errorHistory.slice(-this.maxHistorySize);
+    }
+  }
+}
+
+// Export singleton getter for convenience
+export const getErrorHandler = (): ErrorHandler => ErrorHandler.getInstance();
--- a/ts_web_serviceworker/classes.eventbus.ts
+++ b/ts_web_serviceworker/classes.eventbus.ts
@@ -0,0 +1,409 @@
+import { logger } from './logging.js';
+
+/**
+ * Event types for service worker internal communication
+ */
+export enum ServiceWorkerEvent {
+  // Cache events
+  CACHE_HIT = 'cache:hit',
+  CACHE_MISS = 'cache:miss',
+  CACHE_ERROR = 'cache:error',
+  CACHE_INVALIDATE = 'cache:invalidate',
+  CACHE_INVALIDATE_ALL = 'cache:invalidate_all',
+  CACHE_REVALIDATE = 'cache:revalidate',
+
+  // Update events
+  UPDATE_CHECK_START = 'update:check_start',
+  UPDATE_CHECK_COMPLETE = 'update:check_complete',
+  UPDATE_AVAILABLE = 'update:available',
+  UPDATE_APPLIED = 'update:applied',
+  UPDATE_ERROR = 'update:error',
+
+  // Network events
+  NETWORK_REQUEST_START = 'network:request_start',
+  NETWORK_REQUEST_COMPLETE = 'network:request_complete',
+  NETWORK_REQUEST_ERROR = 'network:request_error',
+  NETWORK_ONLINE = 'network:online',
+  NETWORK_OFFLINE = 'network:offline',
+
+  // Connection events
+  CLIENT_CONNECTED = 'connection:client_connected',
+  CLIENT_DISCONNECTED = 'connection:client_disconnected',
+
+  // Lifecycle events
+  INSTALL = 'lifecycle:install',
+  ACTIVATE = 'lifecycle:activate',
+  READY = 'lifecycle:ready',
+}
+
+/**
+ * Event payload interfaces
+ */
+export interface ICacheEventPayload {
+  url: string;
+  method?: string;
+  bytes?: number;
+  error?: string;
+}
+
+export interface IUpdateEventPayload {
+  oldVersion?: string;
+  newVersion?: string;
+  oldHash?: string;
+  newHash?: string;
+  error?: string;
+}
+
+export interface INetworkEventPayload {
+  url: string;
+  method?: string;
+  status?: number;
+  duration?: number;
+  bytes?: number;
+  error?: string;
+}
+
+export interface IConnectionEventPayload {
+  clientId?: string;
+  tabId?: string;
+}
+
+export interface ILifecycleEventPayload {
+  timestamp: number;
+}
+
+/**
+ * Union type for all event payloads
+ */
+export type TEventPayload =
+  | ICacheEventPayload
+  | IUpdateEventPayload
+  | INetworkEventPayload
+  | IConnectionEventPayload
+  | ILifecycleEventPayload
+  | Record<string, unknown>;
+
+/**
+ * Event listener callback type
+ */
+export type TEventListener<T extends TEventPayload = TEventPayload> = (
+  event: ServiceWorkerEvent,
+  payload: T
+) => void | Promise<void>;
+
+/**
+ * Subscription interface
+ */
+export interface ISubscription {
+  unsubscribe: () => void;
+}
+
+/**
+ * Event bus for decoupled communication between service worker components.
+ * Implements a simple pub/sub pattern.
+ */
+export class EventBus {
+  private static instance: EventBus;
+  private listeners: Map<ServiceWorkerEvent, Set<TEventListener>>;
+  private globalListeners: Set<TEventListener>;
+  private eventHistory: Array<{ event: ServiceWorkerEvent; payload: TEventPayload; timestamp: number }>;
+  private readonly maxHistorySize = 100;
+  private debugMode = false;
+
+  private constructor() {
+    this.listeners = new Map();
+    this.globalListeners = new Set();
+    this.eventHistory = [];
+  }
+
+  /**
+   * Gets the singleton instance
+   */
+  public static getInstance(): EventBus {
+    if (!EventBus.instance) {
+      EventBus.instance = new EventBus();
+    }
+    return EventBus.instance;
+  }
+
+  /**
+   * Enables or disables debug mode (logs all events)
+   */
+  public setDebugMode(enabled: boolean): void {
+    this.debugMode = enabled;
+  }
+
+  /**
+   * Emits an event to all subscribed listeners
+   */
+  public emit<T extends TEventPayload>(event: ServiceWorkerEvent, payload: T): void {
+    if (this.debugMode) {
+      logger.log('note', `[EventBus] Emit: ${event} ${JSON.stringify(payload)}`);
+    }
+
+    // Record in history
+    this.recordEvent(event, payload);
+
+    // Notify specific listeners
+    const specificListeners = this.listeners.get(event);
+    if (specificListeners) {
+      for (const listener of specificListeners) {
+        try {
+          const result = listener(event, payload);
+          if (result instanceof Promise) {
+            result.catch((err) => {
+              logger.log('error', `[EventBus] Async listener error for ${event}: ${err}`);
+            });
+          }
+        } catch (err) {
+          logger.log('error', `[EventBus] Listener error for ${event}: ${err}`);
+        }
+      }
+    }
+
+    // Notify global listeners
+    for (const listener of this.globalListeners) {
+      try {
+        const result = listener(event, payload);
+        if (result instanceof Promise) {
+          result.catch((err) => {
+            logger.log('error', `[EventBus] Global async listener error for ${event}: ${err}`);
+          });
+        }
+      } catch (err) {
+        logger.log('error', `[EventBus] Global listener error for ${event}: ${err}`);
+      }
+    }
+  }
+
+  /**
+   * Subscribes to a specific event
+   */
+  public on<T extends TEventPayload>(
+    event: ServiceWorkerEvent,
+    listener: TEventListener<T>
+  ): ISubscription {
+    if (!this.listeners.has(event)) {
+      this.listeners.set(event, new Set());
+    }
+
+    this.listeners.get(event)!.add(listener as TEventListener);
+
+    return {
+      unsubscribe: () => {
+        this.off(event, listener as TEventListener);
+      },
+    };
+  }
+
+  /**
+   * Subscribes to multiple events at once
+   */
+  public onMany<T extends TEventPayload>(
+    events: ServiceWorkerEvent[],
+    listener: TEventListener<T>
+  ): ISubscription {
+    const subscriptions = events.map((event) =>
+      this.on(event, listener as TEventListener)
+    );
+
+    return {
+      unsubscribe: () => {
+        subscriptions.forEach((sub) => sub.unsubscribe());
+      },
+    };
+  }
+
+  /**
+   * Subscribes to all events
+   */
+  public onAll<T extends TEventPayload>(listener: TEventListener<T>): ISubscription {
+    this.globalListeners.add(listener as TEventListener);
+
+    return {
+      unsubscribe: () => {
+        this.globalListeners.delete(listener as TEventListener);
+      },
+    };
+  }
+
+  /**
+   * Subscribes to an event for only one emission
+   */
+  public once<T extends TEventPayload>(
+    event: ServiceWorkerEvent,
+    listener: TEventListener<T>
+  ): ISubscription {
+    const onceListener: TEventListener = (evt, payload) => {
+      this.off(event, onceListener);
+      return listener(evt, payload as T);
+    };
+
+    return this.on(event, onceListener);
+  }
+
+  /**
+   * Unsubscribes a listener from an event
+   */
+  public off(event: ServiceWorkerEvent, listener: TEventListener): void {
+    const listeners = this.listeners.get(event);
+    if (listeners) {
+      listeners.delete(listener);
+      if (listeners.size === 0) {
+        this.listeners.delete(event);
+      }
+    }
+  }
+
+  /**
+   * Removes all listeners for an event
+   */
+  public removeAllListeners(event?: ServiceWorkerEvent): void {
+    if (event) {
+      this.listeners.delete(event);
+    } else {
+      this.listeners.clear();
+      this.globalListeners.clear();
+    }
+  }
+
+  /**
+   * Gets the count of listeners for an event
+   */
+  public listenerCount(event: ServiceWorkerEvent): number {
+    const listeners = this.listeners.get(event);
+    return (listeners?.size ?? 0) + this.globalListeners.size;
+  }
+
+  /**
+   * Gets the event history
+   */
+  public getHistory(): Array<{ event: ServiceWorkerEvent; payload: TEventPayload; timestamp: number }> {
+    return [...this.eventHistory];
+  }
+
+  /**
+   * Gets events of a specific type from history
+   */
+  public getHistoryByType(event: ServiceWorkerEvent): Array<{ payload: TEventPayload; timestamp: number }> {
+    return this.eventHistory
+      .filter((entry) => entry.event === event)
+      .map(({ payload, timestamp }) => ({ payload, timestamp }));
+  }
+
+  /**
+   * Clears the event history
+   */
+  public clearHistory(): void {
+    this.eventHistory = [];
+  }
+
+  /**
+   * Waits for an event to be emitted (returns a promise)
+   */
+  public waitFor<T extends TEventPayload>(
+    event: ServiceWorkerEvent,
+    timeout?: number
+  ): Promise<T> {
+    return new Promise((resolve, reject) => {
+      let timeoutId: ReturnType<typeof setTimeout> | undefined;
+
+      const subscription = this.once<T>(event, (_, payload) => {
+        if (timeoutId) {
+          clearTimeout(timeoutId);
+        }
+        resolve(payload);
+      });
+
+      if (timeout) {
+        timeoutId = setTimeout(() => {
+          subscription.unsubscribe();
+          reject(new Error(`Timeout waiting for event: ${event}`));
+        }, timeout);
+      }
+    });
+  }
+
+  /**
+   * Records an event in history
+   */
+  private recordEvent(event: ServiceWorkerEvent, payload: TEventPayload): void {
+    this.eventHistory.push({
+      event,
+      payload,
+      timestamp: Date.now(),
+    });
+
+    // Trim history if needed
+    if (this.eventHistory.length > this.maxHistorySize) {
+      this.eventHistory = this.eventHistory.slice(-this.maxHistorySize);
+    }
+  }
+
+  // ===================
+  // Convenience Methods
+  // ===================
+
+  /**
+   * Emits a cache hit event
+   */
+  public emitCacheHit(url: string, bytes?: number): void {
+    this.emit(ServiceWorkerEvent.CACHE_HIT, { url, bytes });
+  }
+
+  /**
+   * Emits a cache miss event
+   */
+  public emitCacheMiss(url: string): void {
+    this.emit(ServiceWorkerEvent.CACHE_MISS, { url });
+  }
+
+  /**
+   * Emits a cache error event
+   */
+  public emitCacheError(url: string, error?: string): void {
+    this.emit(ServiceWorkerEvent.CACHE_ERROR, { url, error });
+  }
+
+  /**
+   * Emits a cache invalidation event
+   */
+  public emitCacheInvalidate(url?: string): void {
+    if (url) {
+      this.emit(ServiceWorkerEvent.CACHE_INVALIDATE, { url });
+    } else {
+      this.emit(ServiceWorkerEvent.CACHE_INVALIDATE_ALL, {});
+    }
+  }
+
+  /**
+   * Emits an update available event
+   */
+  public emitUpdateAvailable(oldVersion: string, newVersion: string, oldHash: string, newHash: string): void {
+    this.emit(ServiceWorkerEvent.UPDATE_AVAILABLE, { oldVersion, newVersion, oldHash, newHash });
+  }
+
+  /**
+   * Emits an update applied event
+   */
+  public emitUpdateApplied(newVersion: string, newHash: string): void {
+    this.emit(ServiceWorkerEvent.UPDATE_APPLIED, { newVersion, newHash });
+  }
+
+  /**
+   * Emits a network online event
+   */
+  public emitNetworkOnline(): void {
+    this.emit(ServiceWorkerEvent.NETWORK_ONLINE, {});
+  }
+
+  /**
+   * Emits a network offline event
+   */
+  public emitNetworkOffline(): void {
+    this.emit(ServiceWorkerEvent.NETWORK_OFFLINE, {});
+  }
+}
+
+// Export singleton getter for convenience
+export const getEventBus = (): EventBus => EventBus.getInstance();
--- a/ts_web_serviceworker/classes.metrics.ts
+++ b/ts_web_serviceworker/classes.metrics.ts
@@ -0,0 +1,463 @@
+import { logger } from './logging.js';
+
+/**
+ * Interface for cache metrics
+ */
+export interface ICacheMetrics {
+  hits: number;
+  misses: number;
+  errors: number;
+  bytesServedFromCache: number;
+  bytesFetched: number;
+  averageResponseTime: number;
+}
+
+/**
+ * Interface for network metrics
+ */
+export interface INetworkMetrics {
+  totalRequests: number;
+  successfulRequests: number;
+  failedRequests: number;
+  timeouts: number;
+  averageLatency: number;
+  totalBytesTransferred: number;
+}
+
+/**
+ * Interface for update metrics
+ */
+export interface IUpdateMetrics {
+  totalChecks: number;
+  successfulChecks: number;
+  failedChecks: number;
+  updatesFound: number;
+  updatesApplied: number;
+  lastCheckTimestamp: number;
+  lastUpdateTimestamp: number;
+}
+
+/**
+ * Interface for connection metrics
+ */
+export interface IConnectionMetrics {
+  connectedClients: number;
+  totalConnectionAttempts: number;
+  successfulConnections: number;
+  failedConnections: number;
+}
+
+/**
+ * Interface for speedtest metrics
+ */
+export interface ISpeedtestMetrics {
+  lastDownloadSpeedMbps: number;
+  lastUploadSpeedMbps: number;
+  lastLatencyMs: number;
+  lastTestTimestamp: number;
+  testCount: number;
+  isOnline: boolean;
+}
+
+/**
+ * Combined metrics interface
+ */
+export interface IServiceWorkerMetrics {
+  cache: ICacheMetrics;
+  network: INetworkMetrics;
+  update: IUpdateMetrics;
+  connection: IConnectionMetrics;
+  speedtest: ISpeedtestMetrics;
+  startTime: number;
+  uptime: number;
+}
+
+/**
+ * Response time entry for calculating averages
+ */
+interface IResponseTimeEntry {
+  url: string;
+  duration: number;
+  timestamp: number;
+}
+
+/**
+ * Metrics collector for service worker observability
+ */
+export class MetricsCollector {
+  private static instance: MetricsCollector;
+
+  // Cache metrics
+  private cacheHits = 0;
+  private cacheMisses = 0;
+  private cacheErrors = 0;
+  private bytesServedFromCache = 0;
+  private bytesFetched = 0;
+
+  // Network metrics
+  private totalRequests = 0;
+  private successfulRequests = 0;
+  private failedRequests = 0;
+  private timeouts = 0;
+  private totalBytesTransferred = 0;
+
+  // Update metrics
+  private totalUpdateChecks = 0;
+  private successfulUpdateChecks = 0;
+  private failedUpdateChecks = 0;
+  private updatesFound = 0;
+  private updatesApplied = 0;
+  private lastCheckTimestamp = 0;
+  private lastUpdateTimestamp = 0;
+
+  // Connection metrics
+  private connectedClients = 0;
+  private totalConnectionAttempts = 0;
+  private successfulConnections = 0;
+  private failedConnections = 0;
+
+  // Speedtest metrics
+  private lastDownloadSpeedMbps = 0;
+  private lastUploadSpeedMbps = 0;
+  private lastLatencyMs = 0;
+  private lastSpeedtestTimestamp = 0;
+  private speedtestCount = 0;
+  private isOnline = true;
+
+  // Response time tracking
+  private responseTimes: IResponseTimeEntry[] = [];
+  private readonly maxResponseTimeEntries = 1000;
+  private readonly responseTimeWindow = 5 * 60 * 1000; // 5 minutes
+
+  // Start time
+  private readonly startTime: number;
+
+  private constructor() {
+    this.startTime = Date.now();
+  }
+
+  /**
+   * Gets the singleton instance
+   */
+  public static getInstance(): MetricsCollector {
+    if (!MetricsCollector.instance) {
+      MetricsCollector.instance = new MetricsCollector();
+    }
+    return MetricsCollector.instance;
+  }
+
+  // ===================
+  // Cache Metrics
+  // ===================
+
+  public recordCacheHit(url: string, bytes: number = 0): void {
+    this.cacheHits++;
+    this.bytesServedFromCache += bytes;
+    logger.log('note', `[Metrics] Cache hit: ${url} (${bytes} bytes)`);
+  }
+
+  public recordCacheMiss(url: string): void {
+    this.cacheMisses++;
+    logger.log('note', `[Metrics] Cache miss: ${url}`);
+  }
+
+  public recordCacheError(url: string, error?: string): void {
+    this.cacheErrors++;
+    logger.log('warn', `[Metrics] Cache error: ${url} - ${error || 'unknown'}`);
+  }
+
+  public recordBytesFetched(bytes: number): void {
+    this.bytesFetched += bytes;
+  }
+
+  // ===================
+  // Network Metrics
+  // ===================
+
+  public recordRequest(_url: string): void {
+    this.totalRequests++;
+  }
+
+  public recordRequestSuccess(url: string, duration: number, bytes: number = 0): void {
+    this.successfulRequests++;
+    this.totalBytesTransferred += bytes;
+    this.recordResponseTime(url, duration);
+  }
+
+  public recordRequestFailure(url: string, error?: string): void {
+    this.failedRequests++;
+    logger.log('warn', `[Metrics] Request failed: ${url} - ${error || 'unknown'}`);
+  }
+
+  public recordTimeout(url: string, duration: number): void {
+    this.timeouts++;
+    logger.log('warn', `[Metrics] Request timeout: ${url} after ${duration}ms`);
+  }
+
+  // ===================
+  // Update Metrics
+  // ===================
+
+  public recordUpdateCheck(success: boolean): void {
+    this.totalUpdateChecks++;
+    this.lastCheckTimestamp = Date.now();
+    if (success) {
+      this.successfulUpdateChecks++;
+    } else {
+      this.failedUpdateChecks++;
+    }
+  }
+
+  public recordUpdateFound(): void {
+    this.updatesFound++;
+  }
+
+  public recordUpdateApplied(): void {
+    this.updatesApplied++;
+    this.lastUpdateTimestamp = Date.now();
+  }
+
+  // ===================
+  // Connection Metrics
+  // ===================
+
+  public recordConnectionAttempt(): void {
+    this.totalConnectionAttempts++;
+  }
+
+  public recordConnectionSuccess(): void {
+    this.successfulConnections++;
+    this.connectedClients++;
+  }
+
+  public recordConnectionFailure(): void {
+    this.failedConnections++;
+  }
+
+  public recordClientDisconnect(): void {
+    this.connectedClients = Math.max(0, this.connectedClients - 1);
+  }
+
+  public setConnectedClients(count: number): void {
+    this.connectedClients = count;
+  }
+
+  // ===================
+  // Speedtest Metrics
+  // ===================
+
+  public recordSpeedtest(type: 'download' | 'upload' | 'latency', value: number): void {
+    this.speedtestCount++;
+    this.lastSpeedtestTimestamp = Date.now();
+    this.isOnline = true;
+
+    switch (type) {
+      case 'download':
+        this.lastDownloadSpeedMbps = value;
+        logger.log('info', `[Metrics] Speedtest download: ${value.toFixed(2)} Mbps`);
+        break;
+      case 'upload':
+        this.lastUploadSpeedMbps = value;
+        logger.log('info', `[Metrics] Speedtest upload: ${value.toFixed(2)} Mbps`);
+        break;
+      case 'latency':
+        this.lastLatencyMs = value;
+        logger.log('info', `[Metrics] Speedtest latency: ${value.toFixed(0)} ms`);
+        break;
+    }
+  }
+
+  public setOnlineStatus(online: boolean): void {
+    this.isOnline = online;
+    logger.log('info', `[Metrics] Online status: ${online ? 'online' : 'offline'}`);
+  }
+
+  public getSpeedtestMetrics(): ISpeedtestMetrics {
+    return {
+      lastDownloadSpeedMbps: this.lastDownloadSpeedMbps,
+      lastUploadSpeedMbps: this.lastUploadSpeedMbps,
+      lastLatencyMs: this.lastLatencyMs,
+      lastTestTimestamp: this.lastSpeedtestTimestamp,
+      testCount: this.speedtestCount,
+      isOnline: this.isOnline,
+    };
+  }
+
+  // ===================
+  // Response Time Tracking
+  // ===================
+
+  private recordResponseTime(url: string, duration: number): void {
+    const entry: IResponseTimeEntry = {
+      url,
+      duration,
+      timestamp: Date.now(),
+    };
+
+    this.responseTimes.push(entry);
+
+    // Trim old entries
+    this.cleanupResponseTimes();
+  }
+
+  private cleanupResponseTimes(): void {
+    const cutoff = Date.now() - this.responseTimeWindow;
+
+    // Remove old entries
+    this.responseTimes = this.responseTimes.filter(
+      (entry) => entry.timestamp >= cutoff
+    );
+
+    // Keep within max size
+    if (this.responseTimes.length > this.maxResponseTimeEntries) {
+      this.responseTimes = this.responseTimes.slice(-this.maxResponseTimeEntries);
+    }
+  }
+
+  private calculateAverageResponseTime(): number {
+    if (this.responseTimes.length === 0) {
+      return 0;
+    }
+
+    const sum = this.responseTimes.reduce((acc, entry) => acc + entry.duration, 0);
+    return Math.round(sum / this.responseTimes.length);
+  }
+
+  private calculateAverageLatency(): number {
+    // Same as response time for now
+    return this.calculateAverageResponseTime();
+  }
+
+  // ===================
+  // Metrics Retrieval
+  // ===================
+
+  /**
+   * Gets all metrics
+   */
+  public getMetrics(): IServiceWorkerMetrics {
+    const now = Date.now();
+    this.cleanupResponseTimes();
+
+    return {
+      cache: {
+        hits: this.cacheHits,
+        misses: this.cacheMisses,
+        errors: this.cacheErrors,
+        bytesServedFromCache: this.bytesServedFromCache,
+        bytesFetched: this.bytesFetched,
+        averageResponseTime: this.calculateAverageResponseTime(),
+      },
+      network: {
+        totalRequests: this.totalRequests,
+        successfulRequests: this.successfulRequests,
+        failedRequests: this.failedRequests,
+        timeouts: this.timeouts,
+        averageLatency: this.calculateAverageLatency(),
+        totalBytesTransferred: this.totalBytesTransferred,
+      },
+      update: {
+        totalChecks: this.totalUpdateChecks,
+        successfulChecks: this.successfulUpdateChecks,
+        failedChecks: this.failedUpdateChecks,
+        updatesFound: this.updatesFound,
+        updatesApplied: this.updatesApplied,
+        lastCheckTimestamp: this.lastCheckTimestamp,
+        lastUpdateTimestamp: this.lastUpdateTimestamp,
+      },
+      connection: {
+        connectedClients: this.connectedClients,
+        totalConnectionAttempts: this.totalConnectionAttempts,
+        successfulConnections: this.successfulConnections,
+        failedConnections: this.failedConnections,
+      },
+      speedtest: {
+        lastDownloadSpeedMbps: this.lastDownloadSpeedMbps,
+        lastUploadSpeedMbps: this.lastUploadSpeedMbps,
+        lastLatencyMs: this.lastLatencyMs,
+        lastTestTimestamp: this.lastSpeedtestTimestamp,
+        testCount: this.speedtestCount,
+        isOnline: this.isOnline,
+      },
+      startTime: this.startTime,
+      uptime: now - this.startTime,
+    };
+  }
+
+  /**
+   * Gets cache hit rate as a percentage
+   */
+  public getCacheHitRate(): number {
+    const total = this.cacheHits + this.cacheMisses;
+    if (total === 0) {
+      return 0;
+    }
+    return Math.round((this.cacheHits / total) * 100);
+  }
+
+  /**
+   * Gets network success rate as a percentage
+   */
+  public getNetworkSuccessRate(): number {
+    if (this.totalRequests === 0) {
+      return 100;
+    }
+    return Math.round((this.successfulRequests / this.totalRequests) * 100);
+  }
+
+  /**
+   * Resets all metrics
+   */
+  public reset(): void {
+    this.cacheHits = 0;
+    this.cacheMisses = 0;
+    this.cacheErrors = 0;
+    this.bytesServedFromCache = 0;
+    this.bytesFetched = 0;
+
+    this.totalRequests = 0;
+    this.successfulRequests = 0;
+    this.failedRequests = 0;
+    this.timeouts = 0;
+    this.totalBytesTransferred = 0;
+
+    this.totalUpdateChecks = 0;
+    this.successfulUpdateChecks = 0;
+    this.failedUpdateChecks = 0;
+    this.updatesFound = 0;
+    this.updatesApplied = 0;
+    this.lastCheckTimestamp = 0;
+    this.lastUpdateTimestamp = 0;
+
+    this.totalConnectionAttempts = 0;
+    this.successfulConnections = 0;
+    this.failedConnections = 0;
+
+    this.lastDownloadSpeedMbps = 0;
+    this.lastUploadSpeedMbps = 0;
+    this.lastLatencyMs = 0;
+    this.lastSpeedtestTimestamp = 0;
+    this.speedtestCount = 0;
+    // Note: isOnline is not reset as it reflects current state
+
+    this.responseTimes = [];
+
+    logger.log('info', '[Metrics] All metrics reset');
+  }
+
+  /**
+   * Gets a summary string for logging
+   */
+  public getSummary(): string {
+    const metrics = this.getMetrics();
+    return [
+      `Cache: ${this.getCacheHitRate()}% hit rate (${metrics.cache.hits}/${metrics.cache.hits + metrics.cache.misses})`,
+      `Network: ${this.getNetworkSuccessRate()}% success (${metrics.network.successfulRequests}/${metrics.network.totalRequests})`,
+      `Updates: ${metrics.update.updatesFound} found, ${metrics.update.updatesApplied} applied`,
+      `Uptime: ${Math.round(metrics.uptime / 1000)}s`,
+    ].join(' | ');
+  }
+}
+
+// Export singleton getter for convenience
+export const getMetricsCollector = (): MetricsCollector => MetricsCollector.getInstance();
--- a/ts_web_serviceworker/classes.serviceworker.ts
+++ b/ts_web_serviceworker/classes.serviceworker.ts
@@ -27,6 +27,10 @@ export class ServiceWorker {
  public taskManager: TaskManager;
  public store: plugins.webstore.WebStore;

+  // TypedSocket connection for server communication
+  public typedsocket: plugins.typedsocket.TypedSocket;
+  public typedrouter = new plugins.typedrequest.TypedRouter();
+
  constructor(selfArg: interfaces.ServiceWindow) {
    logger.log('info', `Service worker instantiating at ${Date.now()}`);
    this.serviceWindowRef = selfArg;
@@ -76,16 +80,52 @@ export class ServiceWorker {
      try {
        await selfArg.clients.claim();
        logger.log('ok', 'Clients claimed successfully');
-        
+
        await this.cacheManager.cleanCaches('new service worker loaded! :)');
        logger.log('ok', 'Caches cleaned successfully');
-        
+
        done.resolve();
        logger.log('success', `Service worker activated at ${new Date().toISOString()}`);
+
+        // Connect to TypedServer for cache invalidation after activation
+        this.connectToServer();
      } catch (error) {
        logger.log('error', `Service worker activation error: ${error}`);
        done.reject(error);
      }
    });
  }
+
+  /**
+   * Connect to TypedServer via TypedSocket for cache invalidation
+   */
+  private async connectToServer(): Promise<void> {
+    try {
+      // Register handler for cache invalidation from server
+      this.typedrouter.addTypedHandler<interfaces.serviceworker.IRequest_Serviceworker_CacheInvalidate>(
+        new plugins.typedrequest.TypedHandler('serviceworker_cacheInvalidate', async (reqArg) => {
+          logger.log('info', `Cache invalidation requested from server: ${reqArg.reason}`);
+          await this.cacheManager.cleanCaches(reqArg.reason);
+          // Notify all clients to reload
+          await this.leleServiceWorkerBackend.triggerReloadAll();
+          return { success: true };
+        })
+      );
+
+      // Connect to server via TypedSocket
+      this.typedsocket = await plugins.typedsocket.TypedSocket.createClient(
+        this.typedrouter,
+        this.serviceWindowRef.location.origin
+      );
+
+      // Tag this connection as a service worker for server-side filtering
+      await this.typedsocket.setTag('serviceworker', {});
+
+      logger.log('ok', 'Service worker connected to TypedServer via TypedSocket');
+    } catch (error: any) {
+      logger.log('warn', `Service worker TypedSocket connection failed: ${error?.message || error}`);
+      // Retry connection after a delay
+      setTimeout(() => this.connectToServer(), 10000);
+    }
+  }
 }
--- a/ts_web_serviceworker/classes.updatemanager.ts
+++ b/ts_web_serviceworker/classes.updatemanager.ts
@@ -3,6 +3,9 @@ import * as interfaces from '../dist_ts_interfaces/index.js';
 import { ServiceWorker } from './classes.serviceworker.js';
 import { logger } from './logging.js';
 import { CacheManager } from './classes.cachemanager.js';
+import { getMetricsCollector } from './classes.metrics.js';
+import { getEventBus, ServiceWorkerEvent } from './classes.eventbus.js';
+import { getErrorHandler, ServiceWorkerErrorType } from './classes.errorhandler.js';

 export class UpdateManager {
  public lastUpdateCheck: number = 0;
@@ -10,6 +13,10 @@ export class UpdateManager {

  public serviceworkerRef: ServiceWorker;

+  // Rate limiting for update checks
+  private isCheckInProgress = false;
+  private pendingCheckPromise: Promise<boolean> | null = null;
+
  constructor(serviceWorkerRefArg: ServiceWorker) {
    this.serviceworkerRef = serviceWorkerRefArg;
  }
@@ -22,75 +29,144 @@ export class UpdateManager {
  private readonly OFFLINE_GRACE_PERIOD = 7 * 24 * 60 * 60 * 1000; // 7 days grace period when offline
  private lastCacheTimestamp: number = 0;

-  public async checkUpdate(cacheManager: CacheManager): Promise<boolean> {
-    const lswVersionInfoKey = 'versionInfo';
-    const cacheTimestampKey = 'cacheTimestamp';
-
-    // Initialize or load version info
-    if (!this.lastVersionInfo && !(await this.serviceworkerRef.store.check(lswVersionInfoKey))) {
-      this.lastVersionInfo = {
-        appHash: '',
-        appSemVer: 'v0.0.0',
-      };
-    } else if (!this.lastVersionInfo && (await this.serviceworkerRef.store.check(lswVersionInfoKey))) {
-      this.lastVersionInfo = await this.serviceworkerRef.store.get(lswVersionInfoKey);
-    }
-
-    // Load or initialize cache timestamp
-    if (await this.serviceworkerRef.store.check(cacheTimestampKey)) {
-      this.lastCacheTimestamp = await this.serviceworkerRef.store.get(cacheTimestampKey);
-    }
-
+  /**
+   * Public method to trigger an update check (rate-limited)
+   */
+  public async checkUpdate(_cacheManager: CacheManager): Promise<boolean> {
    const now = Date.now();
    const millisSinceLastCheck = now - this.lastUpdateCheck;
-    const cacheAge = now - this.lastCacheTimestamp;

-    // Check if we need to handle stale cache
-    if (cacheAge > this.MAX_CACHE_AGE) {
-      const isOnline = await this.serviceworkerRef.networkManager.checkOnlineStatus();
-      
-      if (isOnline) {
-        logger.log('info', `Cache is older than ${this.MAX_CACHE_AGE}ms, forcing update...`);
-        await this.forceUpdate(cacheManager);
-        return true;
-      } else if (cacheAge > this.OFFLINE_GRACE_PERIOD) {
-        // If we're offline and beyond grace period, warn but continue serving cached content
-        logger.log('warn', `Cache is stale and device is offline. Cache age: ${cacheAge}ms. Using cached content with warning.`);
-        // We could potentially show a warning to the user here
-        return false;
-      } else {
-        logger.log('info', `Cache is stale but device is offline. Within grace period. Using cached content.`);
-        return false;
-      }
-    }
-
-    // Regular update check interval
-    if (millisSinceLastCheck < this.MIN_CHECK_INTERVAL && cacheAge < this.MAX_CACHE_AGE) {
+    // Rate limit: skip if we checked recently
+    if (millisSinceLastCheck < this.MIN_CHECK_INTERVAL) {
      return false;
    }
-    logger.log('info', 'checking for update of the app by comparing app hashes...');
-    this.lastUpdateCheck = now;
-    const currentVersionInfo = await this.getVersionInfoFromServer();
-    logger.log('info', `old versionInfo: ${JSON.stringify(this.lastVersionInfo)}`);
-    logger.log('info', `current versionInfo: ${JSON.stringify(currentVersionInfo)}`);
-    const needsUpdate = this.lastVersionInfo.appHash !== currentVersionInfo.appHash ? true : false;
-    if (needsUpdate) {
-      logger.log('info', 'Caches need to be updated');
-      logger.log('info', 'starting a debounced update task');
-      this.performAsyncUpdateDebouncedTask.trigger();
-      this.lastVersionInfo = currentVersionInfo;
-      await this.serviceworkerRef.store.set(lswVersionInfoKey, this.lastVersionInfo);
-      
-      // Update cache timestamp
-      this.lastCacheTimestamp = now;
-      await this.serviceworkerRef.store.set('cacheTimestamp', now);
-    } else {
-      logger.log('ok', 'caches are still valid, performing revalidation in a bit...');
-      this.performAsyncCacheRevalidationDebouncedTask.trigger();
-      
-      // Update cache timestamp after successful revalidation
-      this.lastCacheTimestamp = now;
-      await this.serviceworkerRef.store.set('cacheTimestamp', now);
+
+    // If a check is in progress, return the existing promise
+    if (this.pendingCheckPromise) {
+      return this.pendingCheckPromise;
+    }
+
+    // Perform the check
+    this.pendingCheckPromise = this.performUpdateCheck().finally(() => {
+      this.pendingCheckPromise = null;
+    });
+
+    return this.pendingCheckPromise;
+  }
+
+  /**
+   * Internal method that performs the actual update check
+   */
+  private async performUpdateCheck(): Promise<boolean> {
+    // Prevent concurrent checks
+    if (this.isCheckInProgress) {
+      logger.log('note', 'Update check already in progress, skipping...');
+      return false;
+    }
+
+    this.isCheckInProgress = true;
+    const metrics = getMetricsCollector();
+    const eventBus = getEventBus();
+    const errorHandler = getErrorHandler();
+
+    try {
+      eventBus.emit(ServiceWorkerEvent.UPDATE_CHECK_START, { timestamp: Date.now() });
+
+      const lswVersionInfoKey = 'versionInfo';
+      const cacheTimestampKey = 'cacheTimestamp';
+
+      // Initialize or load version info
+      if (!this.lastVersionInfo && !(await this.serviceworkerRef.store.check(lswVersionInfoKey))) {
+        this.lastVersionInfo = {
+          appHash: '',
+          appSemVer: 'v0.0.0',
+        };
+      } else if (!this.lastVersionInfo && (await this.serviceworkerRef.store.check(lswVersionInfoKey))) {
+        this.lastVersionInfo = await this.serviceworkerRef.store.get(lswVersionInfoKey);
+      }
+
+      // Load or initialize cache timestamp
+      if (await this.serviceworkerRef.store.check(cacheTimestampKey)) {
+        this.lastCacheTimestamp = await this.serviceworkerRef.store.get(cacheTimestampKey);
+      }
+
+      const now = Date.now();
+      const cacheAge = now - this.lastCacheTimestamp;
+
+      // Check if we need to handle stale cache
+      if (cacheAge > this.MAX_CACHE_AGE) {
+        const isOnline = await this.serviceworkerRef.networkManager.checkOnlineStatus();
+
+        if (isOnline) {
+          logger.log('info', `Cache is older than ${this.MAX_CACHE_AGE}ms, forcing update...`);
+          await this.forceUpdate(this.serviceworkerRef.cacheManager);
+          metrics.recordUpdateCheck(true);
+          return true;
+        } else if (cacheAge > this.OFFLINE_GRACE_PERIOD) {
+          logger.log('warn', `Cache is stale and device is offline. Cache age: ${cacheAge}ms. Using cached content with warning.`);
+          metrics.recordUpdateCheck(false);
+          return false;
+        } else {
+          logger.log('info', `Cache is stale but device is offline. Within grace period. Using cached content.`);
+          metrics.recordUpdateCheck(false);
+          return false;
+        }
+      }
+
+      logger.log('info', 'checking for update of the app by comparing app hashes...');
+      this.lastUpdateCheck = Date.now();
+
+      const currentVersionInfo = await this.getVersionInfoFromServer();
+      logger.log('info', `old versionInfo: ${JSON.stringify(this.lastVersionInfo)}`);
+      logger.log('info', `current versionInfo: ${JSON.stringify(currentVersionInfo)}`);
+
+      const needsUpdate = this.lastVersionInfo.appHash !== currentVersionInfo.appHash;
+
+      if (needsUpdate) {
+        logger.log('info', 'Caches need to be updated');
+        logger.log('info', 'starting a debounced update task');
+
+        metrics.recordUpdateFound();
+        eventBus.emitUpdateAvailable(
+          this.lastVersionInfo.appSemVer,
+          currentVersionInfo.appSemVer,
+          this.lastVersionInfo.appHash,
+          currentVersionInfo.appHash
+        );
+
+        this.performAsyncUpdateDebouncedTask.trigger();
+        this.lastVersionInfo = currentVersionInfo;
+        await this.serviceworkerRef.store.set(lswVersionInfoKey, this.lastVersionInfo);
+
+        // Update cache timestamp
+        this.lastCacheTimestamp = now;
+        await this.serviceworkerRef.store.set('cacheTimestamp', now);
+      } else {
+        logger.log('ok', 'caches are still valid, performing revalidation in a bit...');
+        this.performAsyncCacheRevalidationDebouncedTask.trigger();
+
+        // Update cache timestamp after successful revalidation
+        this.lastCacheTimestamp = now;
+        await this.serviceworkerRef.store.set('cacheTimestamp', now);
+      }
+
+      metrics.recordUpdateCheck(true);
+      eventBus.emit(ServiceWorkerEvent.UPDATE_CHECK_COMPLETE, {
+        needsUpdate,
+        timestamp: Date.now()
+      });
+
+      return needsUpdate;
+    } catch (error) {
+      const err = errorHandler.handleUpdateError(
+        `Update check failed: ${error?.message || error}`,
+        error instanceof Error ? error : undefined
+      );
+      metrics.recordUpdateCheck(false);
+      eventBus.emit(ServiceWorkerEvent.UPDATE_ERROR, { error: err.message });
+      return false;
+    } finally {
+      this.isCheckInProgress = false;
    }
  }

@@ -140,9 +216,18 @@ export class UpdateManager {
    name: 'performAsyncUpdate',
    taskFunction: async () => {
      logger.log('info', 'trying to update PWA with serviceworker');
+      const metrics = getMetricsCollector();
+      const eventBus = getEventBus();
+
      await this.serviceworkerRef.cacheManager.cleanCaches('a new app version has been communicated by the server.');
      // lets notify all current clients about the update
      await this.serviceworkerRef.leleServiceWorkerBackend.triggerReloadAll();
+
+      metrics.recordUpdateApplied();
+      eventBus.emitUpdateApplied(
+        this.lastVersionInfo?.appSemVer || 'unknown',
+        this.lastVersionInfo?.appHash || 'unknown'
+      );
    },
    debounceTimeInMillis: 2000,
  });
--- a/ts_web_serviceworker/index.ts
+++ b/ts_web_serviceworker/index.ts
@@ -5,3 +5,6 @@ declare var self: env.ServiceWindow;
 import { ServiceWorker } from './classes.serviceworker.js';

 const sw = new ServiceWorker(self);
+
+// Export getter for service worker instance (used by dashboard for TypedSocket access)
+export const getServiceWorkerInstance = (): ServiceWorker => sw;
--- a/ts_web_serviceworker/plugins.ts
+++ b/ts_web_serviceworker/plugins.ts
@@ -5,8 +5,9 @@ export { interfaces };

 // @apiglobal scope
 import * as typedrequest from '@api.global/typedrequest';
+import * as typedsocket from '@api.global/typedsocket';

-export { typedrequest };
+export { typedrequest, typedsocket };

 // @pushrocks scope
 import * as smartdelay from '@push.rocks/smartdelay';
--- a/ts_web_serviceworker_client/classes.actionmanager.ts
+++ b/ts_web_serviceworker_client/classes.actionmanager.ts
@@ -2,6 +2,25 @@ import * as plugins from './plugins.js';
 import * as interfaces from '../dist_ts_interfaces/index.js';
 import { logger } from './logging.js';

+/**
+ * Connection options for service worker connection attempts
+ */
+export interface IConnectionOptions {
+  timeoutMs: number;      // Total timeout for all attempts (default: 30000)
+  maxRetries: number;     // Maximum number of retry attempts (default: 10)
+  initialDelayMs: number; // Initial delay between retries (default: 500)
+  maxDelayMs: number;     // Maximum delay between retries (default: 5000)
+  backoffMultiplier: number; // Multiplier for exponential backoff (default: 1.5)
+}
+
+const DEFAULT_CONNECTION_OPTIONS: IConnectionOptions = {
+  timeoutMs: 30000,
+  maxRetries: 10,
+  initialDelayMs: 500,
+  maxDelayMs: 5000,
+  backoffMultiplier: 1.5,
+};
+
 /**
 * MessageManager implements two ways of serviceworker communication
 * * the serviceWorker method
@@ -20,28 +39,96 @@ export class ActionManager {
    });
  }

-  public async waitForServiceWorkerConnection () {
-    console.log('waiting for service worker connection...')
+  /**
+   * Waits for service worker connection with timeout and retry logic.
+   * Returns a result object instead of blocking forever.
+   */
+  public async waitForServiceWorkerConnection(
+    options: Partial<IConnectionOptions> = {}
+  ): Promise<interfaces.serviceworker.IConnectionResult> {
+    const opts = { ...DEFAULT_CONNECTION_OPTIONS, ...options };
+    const startTime = Date.now();
+    let attempt = 0;
+    let currentDelay = opts.initialDelayMs;
+
+    logger.log('info', 'Waiting for service worker connection...');
+
    const tr = this.deesComms.createTypedRequest<interfaces.serviceworker.IRequest_Client_Serviceworker_ConnectionPolling>('broadcastConnectionPolling');
-    let connected = false;
-    while (!connected) {
-      tr.fire({
-        tabId: '123'
-      }).then(response => {
-        if (response.serviceworkerId) {
-          console.log('connected to serviceworker!');
-          connected = true;
-        }
-      }).catch();
-      await plugins.smartdelay.delayFor(777);
-      if (!connected) {
-        // lets wake it up.
-        navigator.serviceWorker.controller.postMessage({
-          type: 'wakeUpCall',
-        });
+
+    while (attempt < opts.maxRetries) {
+      // Check total timeout
+      const elapsed = Date.now() - startTime;
+      if (elapsed >= opts.timeoutMs) {
+        logger.log('warn', `Service worker connection timeout after ${elapsed}ms (${attempt} attempts)`);
+        return {
+          connected: false,
+          error: 'timeout',
+          attempts: attempt,
+          duration: elapsed,
+        };
      }
+
+      attempt++;
+
+      try {
+        // Create a per-request timeout
+        const requestTimeout = Math.min(currentDelay * 2, opts.maxDelayMs);
+        const response = await Promise.race([
+          tr.fire({ tabId: crypto.randomUUID?.() || String(Date.now()) }),
+          new Promise<null>((_, reject) =>
+            setTimeout(() => reject(new Error('Request timeout')), requestTimeout)
+          ),
+        ]);
+
+        if (response && response.serviceworkerId) {
+          const duration = Date.now() - startTime;
+          logger.log('ok', `Connected to service worker after ${attempt} attempt(s) (${duration}ms)`);
+          return {
+            connected: true,
+            attempts: attempt,
+            duration,
+          };
+        }
+      } catch (error) {
+        // Request failed or timed out, continue with retry
+        logger.log('note', `Connection attempt ${attempt} failed: ${error?.message || 'unknown error'}`);
+      }
+
+      // Try to wake up the service worker
+      if (navigator.serviceWorker.controller) {
+        try {
+          navigator.serviceWorker.controller.postMessage({
+            type: 'wakeUpCall',
+          });
+        } catch {
+          // Ignore errors when posting message
+        }
+      }
+
+      // Wait before next attempt with exponential backoff
+      await plugins.smartdelay.delayFor(currentDelay);
+      currentDelay = Math.min(currentDelay * opts.backoffMultiplier, opts.maxDelayMs);
+    }
+
+    const duration = Date.now() - startTime;
+    logger.log('warn', `Service worker connection failed after ${opts.maxRetries} attempts (${duration}ms)`);
+    return {
+      connected: false,
+      error: 'max_retries_exceeded',
+      attempts: attempt,
+      duration,
+    };
+  }
+
+  /**
+   * Legacy method for backward compatibility - blocks until connected or gives up
+   * @deprecated Use waitForServiceWorkerConnection() instead which returns a result
+   */
+  public async waitForServiceWorkerConnectionBlocking(): Promise<void> {
+    const result = await this.waitForServiceWorkerConnection();
+    if (!result.connected) {
+      logger.log('warn', `Failed to connect to service worker: ${result.error}`);
    }
-    console.log('ok, got serviceworker connection.')
  }

  public async purgeServiceWorkerCache () {
--- a/ts_web_serviceworker_client/classes.serviceworkerclient.ts
+++ b/ts_web_serviceworker_client/classes.serviceworkerclient.ts
@@ -5,28 +5,54 @@ import { NotificationManager } from './classes.notificationmanager.js';
 import { ActionManager } from './classes.actionmanager.js';
 import { GlobalSW } from './classes.globalsw.js'

+/**
+ * Polling options for service worker update checks
+ */
+export interface IPollingOptions {
+  intervalMs: number;         // Interval between update checks (default: 60000 - 1 minute)
+  pauseWhenHidden: boolean;   // Pause polling when page is hidden (default: true)
+  initialDelayMs: number;     // Initial delay before first poll (default: 2000)
+}
+
+const DEFAULT_POLLING_OPTIONS: IPollingOptions = {
+  intervalMs: 60000,        // 1 minute
+  pauseWhenHidden: true,
+  initialDelayMs: 2000,
+};
+
 export class ServiceworkerClient {
  // STATIC
-  public static async createServiceWorker(): Promise<ServiceworkerClient> {
+  private static pollingController: AbortController | null = null;
+  private static swRegistration: ServiceWorkerRegistration | null = null;
+  private static isPollingActive = false;
+
+  public static async createServiceWorker(
+    pollingOptions: Partial<IPollingOptions> = {}
+  ): Promise<ServiceworkerClient> {
    if ('serviceWorker' in navigator) {
      try {
        logger.log('info', 'trying to register serviceworker');
        // this is some magic for Parcel to not pick up the serviceworker
        const serviceworkerInNavigator: ServiceWorkerContainer = navigator.serviceWorker;
-        const swRegistration: ServiceWorkerRegistration = await serviceworkerInNavigator.register('/serviceworker.bundle.js', {
+        this.swRegistration = await serviceworkerInNavigator.register('/serviceworker.bundle.js', {
          scope: '/',
          updateViaCache: 'none'
        });
-        plugins.smartdelay.delayFor(2000).then(async () => {
-          swRegistration.onupdatefound = () => {
-            logger.log('info', 'update found for service worker!');
-            logger.log('warn', 'trying to find convenient time to update');
-          };
-          while(true) {
-            await plugins.smartdelay.delayFor(60000);
-            swRegistration.update();
-          }
-        });
+
+        this.swRegistration.onupdatefound = () => {
+          logger.log('info', 'update found for service worker!');
+          logger.log('warn', 'trying to find convenient time to update');
+        };
+
+        // Start polling with controllable abort mechanism
+        const opts = { ...DEFAULT_POLLING_OPTIONS, ...pollingOptions };
+        this.startPolling(opts);
+
+        // Set up visibility change handler to pause/resume polling
+        if (opts.pauseWhenHidden) {
+          this.setupVisibilityHandler(opts);
+        }
+
        logger.log('ok', 'serviceworker registered');
        await navigator.serviceWorker.ready;
        logger.log('ok', 'serviceworker is ready!');
@@ -41,6 +67,120 @@ export class ServiceworkerClient {
    }
  }

+  /**
+   * Starts the update polling loop with an AbortController
+   */
+  private static startPolling(opts: IPollingOptions): void {
+    // Cancel any existing polling
+    this.stopPolling();
+
+    this.pollingController = new AbortController();
+    this.isPollingActive = true;
+    const signal = this.pollingController.signal;
+
+    const poll = async () => {
+      // Initial delay
+      await plugins.smartdelay.delayFor(opts.initialDelayMs);
+
+      while (!signal.aborted && this.swRegistration) {
+        try {
+          // Check for updates
+          await this.swRegistration.update();
+          logger.log('note', 'Service worker update check completed');
+        } catch (err) {
+          if (!signal.aborted) {
+            logger.log('warn', `Service worker update check failed: ${err?.message || err}`);
+          }
+        }
+
+        // Wait for next interval, but check abort signal
+        if (!signal.aborted) {
+          await this.delayWithAbort(opts.intervalMs, signal);
+        }
+      }
+
+      this.isPollingActive = false;
+      logger.log('info', 'Service worker polling stopped');
+    };
+
+    // Start polling (fire and forget)
+    poll().catch((err) => {
+      if (!signal.aborted) {
+        logger.log('error', `Service worker polling error: ${err?.message || err}`);
+      }
+    });
+  }
+
+  /**
+   * Stops the polling loop
+   */
+  public static stopPolling(): void {
+    if (this.pollingController) {
+      this.pollingController.abort();
+      this.pollingController = null;
+    }
+    this.isPollingActive = false;
+  }
+
+  /**
+   * Sets up visibility change handler to pause/resume polling
+   */
+  private static setupVisibilityHandler(opts: IPollingOptions): void {
+    document.addEventListener('visibilitychange', () => {
+      if (document.visibilityState === 'hidden') {
+        // Page is hidden, stop polling to save resources
+        logger.log('note', 'Page hidden, pausing service worker polling');
+        this.stopPolling();
+      } else if (document.visibilityState === 'visible') {
+        // Page is visible again, resume polling
+        if (!this.isPollingActive && this.swRegistration) {
+          logger.log('note', 'Page visible, resuming service worker polling');
+          this.startPolling(opts);
+        }
+      }
+    });
+  }
+
+  /**
+   * Delay that can be aborted
+   */
+  private static delayWithAbort(ms: number, signal: AbortSignal): Promise<void> {
+    return new Promise((resolve) => {
+      const timeout = setTimeout(() => {
+        resolve();
+      }, ms);
+
+      signal.addEventListener('abort', () => {
+        clearTimeout(timeout);
+        resolve();
+      }, { once: true });
+    });
+  }
+
+  /**
+   * Manually triggers an update check
+   */
+  public static async triggerUpdateCheck(): Promise<void> {
+    if (this.swRegistration) {
+      try {
+        await this.swRegistration.update();
+        logger.log('ok', 'Manual service worker update check completed');
+      } catch (err) {
+        logger.log('error', `Manual update check failed: ${err?.message || err}`);
+        throw err;
+      }
+    } else {
+      logger.log('warn', 'Cannot trigger update check: no service worker registration');
+    }
+  }
+
+  /**
+   * Gets whether polling is currently active
+   */
+  public static get isPolling(): boolean {
+    return this.isPollingActive;
+  }
+
  private static async waitForController() {
    const done = new plugins.smartpromise.Deferred();
    const checkReady = () => {
@@ -66,4 +206,11 @@ export class ServiceworkerClient {
    this.actionManager = new ActionManager();
    this.globalSw = new GlobalSW(this);
  }
+
+  /**
+   * Cleanup method to stop polling when the client is no longer needed
+   */
+  public destroy(): void {
+    ServiceworkerClient.stopPolling();
+  }
 }
--- a/ts_web_serviceworker_client/index.ts
+++ b/ts_web_serviceworker_client/index.ts
@@ -11,14 +11,17 @@ export type {
 import { logger } from './logging.js';
 logger.log('note', 'mainthread console initialized!');

-import { ServiceworkerClient } from './classes.serviceworkerclient.js';
+import { ServiceworkerClient, type IPollingOptions } from './classes.serviceworkerclient.js';
+import { type IConnectionOptions } from './classes.actionmanager.js';

 export type {
-  ServiceworkerClient
+  ServiceworkerClient,
+  IPollingOptions,
+  IConnectionOptions,
 }

-export const getServiceworkerClient = async () => {
-  const swClient = await ServiceworkerClient.createServiceWorker(); // lets setup the service worker
+export const getServiceworkerClient = async (pollingOptions?: Partial<IPollingOptions>) => {
+  const swClient = await ServiceworkerClient.createServiceWorker(pollingOptions); // lets setup the service worker
  logger.log('ok', 'service worker ready!'); // and wait for it to be ready
  return swClient;
 };
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,7 +1,5 @@
 {
  "compilerOptions": {
-    "experimentalDecorators": true,
-    "useDefineForClassFields": false,
    "target": "ES2022",
    "module": "NodeNext",
    "moduleResolution": "NodeNext",
Author	SHA1	Message	Date
Juergen Kunz	b33ab76a9e	v6.6.0 Some checks failed Default (tags) / security (push) Failing after 16s Details Default (tags) / test (push) Failing after 12s Details Default (tags) / release (push) Has been skipped Details Default (tags) / metadata (push) Has been skipped Details	2025-12-04 12:16:24 +00:00
Juergen Kunz	78a5c53d19	feat(web_serviceworker): Enable service worker dashboard speedtests via TypedSocket, expose ServiceWorker instance to dashboard, and add server-side speedtest handler	2025-12-04 12:16:24 +00:00
Juergen Kunz	4bae49cfb0	v6.5.0 Some checks failed Default (tags) / security (push) Failing after 16s Details Default (tags) / test (push) Failing after 13s Details Default (tags) / release (push) Has been skipped Details Default (tags) / metadata (push) Has been skipped Details	2025-12-04 11:46:55 +00:00
Juergen Kunz	031eb78288	feat(serviceworker): Add server-driven service worker cache invalidation and TypedSocket integration	2025-12-04 11:46:55 +00:00
Juergen Kunz	98eae1e79a	v6.4.0 Some checks failed Default (tags) / security (push) Failing after 16s Details Default (tags) / test (push) Failing after 13s Details Default (tags) / release (push) Has been skipped Details Default (tags) / metadata (push) Has been skipped Details	2025-12-04 11:36:27 +00:00
Juergen Kunz	aa677a2b7c	feat(serviceworker): Add speedtest support to service worker and dashboard	2025-12-04 11:36:27 +00:00
Juergen Kunz	5a81858df5	v6.3.0 Some checks failed Default (tags) / security (push) Failing after 16s Details Default (tags) / test (push) Failing after 13s Details Default (tags) / release (push) Has been skipped Details Default (tags) / metadata (push) Has been skipped Details	2025-12-04 11:25:57 +00:00
Juergen Kunz	c263b0608c	feat(web_serviceworker): Add advanced service worker subsystems: cache deduplication, metrics, update & network managers, event bus and dashboard	2025-12-04 11:25:56 +00:00
Juergen Kunz	30126f716e	feat(TypedServer): Enhance file watching with glob pattern for recursive directory matching	2025-12-04 11:22:04 +00:00
Juergen Kunz	4dc0cb311b	v6.2.0 Some checks failed Default (tags) / security (push) Failing after 16s Details Default (tags) / test (push) Failing after 13s Details Default (tags) / release (push) Has been skipped Details Default (tags) / metadata (push) Has been skipped Details	2025-12-04 11:14:04 +00:00
Juergen Kunz	84256fd8fc	feat(web_serviceworker): Add service-worker dashboard and request deduplication; improve caching, metrics and error handling	2025-12-04 11:14:04 +00:00
Juergen Kunz	8010977d05	v6.1.0 Some checks failed Default (tags) / security (push) Failing after 16s Details Default (tags) / test (push) Failing after 13s Details Default (tags) / release (push) Has been skipped Details Default (tags) / metadata (push) Has been skipped Details	2025-12-04 08:52:49 +00:00
Juergen Kunz	54bb12d6ff	feat(web_serviceworker): Enhance service worker subsystem: add metrics, event bus, error handling, config and caching/update improvements; make client connection & polling robust	2025-12-04 08:52:49 +00:00
Juergen Kunz	9ac91fd166	v6.0.1 Some checks failed Default (tags) / security (push) Failing after 20s Details Default (tags) / test (push) Failing after 12s Details Default (tags) / release (push) Has been skipped Details Default (tags) / metadata (push) Has been skipped Details	2025-12-04 00:03:23 +00:00
Juergen Kunz	b4e26d6d6a	fix(web_inject): Use TypedSocket status API in web_inject and bump dependencies	2025-12-04 00:03:23 +00:00
Juergen Kunz	1885eb78e5	v6.0.0 Some checks failed Default (tags) / security (push) Failing after 22s Details Default (tags) / test (push) Failing after 12s Details Default (tags) / release (push) Has been skipped Details Default (tags) / metadata (push) Has been skipped Details	2025-12-03 09:41:56 +00:00
Juergen Kunz	8b4c5918e9	BREAKING CHANGE(servertools.Server.addTypedSocket): Deprecate Server.addTypedSocket and upgrade typedsocket to v4; make addTypedSocket a no-op and log a deprecation warning. Bump tsbundle devDependency.	2025-12-03 09:41:56 +00:00
Juergen Kunz	c6792396df	v5.0.0 Some checks failed Default (tags) / security (push) Failing after 16s Details Default (tags) / test (push) Failing after 13s Details Default (tags) / release (push) Has been skipped Details Default (tags) / metadata (push) Has been skipped Details	2025-12-02 21:10:25 +00:00
Juergen Kunz	fc6829f607	BREAKING CHANGE(devtools): Switch /reloadcheck endpoint from GET to POST in DevToolsController	2025-12-02 21:10:25 +00:00
Juergen Kunz	424b742f84	v4.1.1 Some checks failed Default (tags) / security (push) Failing after 16s Details Default (tags) / test (push) Failing after 13s Details Default (tags) / release (push) Has been skipped Details Default (tags) / metadata (push) Has been skipped Details	2025-12-02 21:03:57 +00:00
Juergen Kunz	c25daba1c1	fix(classes.typedserver): Instantiate and register DevToolsController only when injectReload is enabled; compile ControllerRegistry routes after registration	2025-12-02 21:03:57 +00:00
Juergen Kunz	dce2e926e4	v4.1.0 Some checks failed Default (tags) / security (push) Failing after 18s Details Default (tags) / test (push) Failing after 12s Details Default (tags) / release (push) Has been skipped Details Default (tags) / metadata (push) Has been skipped Details	2025-12-02 20:47:11 +00:00
Juergen Kunz	27c96949a1	feat(TypedServer): Integrate SmartServe controller routing; add built-in routes controller and refactor TypedServer to use controllers and FileServer	2025-12-02 20:47:11 +00:00
Juergen Kunz	c17d6dac35	feat: Refactor TypedServer to use SmartServe and introduce new request handlers - Removed legacy servertools and Express dependencies in favor of SmartServe. - Introduced DevToolsHandler and TypedRequestHandler for handling specific routes. - Added support for custom route registration with regex parsing. - Implemented sitemap and feed handling with dedicated helper classes. - Enhanced HTML response handling with reload script injection. - Updated UtilityServiceServer and UtilityWebsiteServer to utilize new TypedServer API. - Removed deprecated compression options and Express-based route handling. - Added comprehensive request handling for various endpoints including robots.txt, manifest.json, and sitemap. - Improved error handling and response formatting across the server.	2025-12-02 20:26:34 +00:00