diff --git a/src/frontend/apps/impress/src/features/service-worker/service-worker.ts b/src/frontend/apps/impress/src/features/service-worker/service-worker.ts
index a3c30768..e542cb18 100644
--- a/src/frontend/apps/impress/src/features/service-worker/service-worker.ts
+++ b/src/frontend/apps/impress/src/features/service-worker/service-worker.ts
@@ -130,6 +130,23 @@ setCatchHandler(async ({ request, url, event }) => {
   }
 });
 
+/**
+ * External urls cache strategy
+ */
+registerRoute(
+  ({ url }) => !url.href.includes(self.location.origin),
+  new NetworkFirst({
+    cacheName: getCacheNameVersion('default-external'),
+    plugins: [
+      new CacheableResponsePlugin({ statuses: [0, 200] }),
+      new ExpirationPlugin({
+        maxAgeSeconds: 24 * 60 * 60 * DAYS_EXP,
+      }),
+    ],
+  }),
+  'GET',
+);
+
 /**
  * Cache stategy static files images (images / svg)
  */