> For the complete documentation index, see [llms.txt](https://docs.instruqt.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.instruqt.com/reference/platform/third-party-network-access.md).

# Network access

The Instruqt platform ([play.instruqt.com](broken://spaces/gTfgXPLQ9tIiGrbaKxkN/pages/8k1K3jpMergqAN33INjF)) depends on the following network endpoints to provide its services. Below you can find all required and optional providers and the domain names used.

### First party (required)

* Instruqt Core Platform
  * <https://play.instruqt.com> (443)
  * <https://ping.instruqt.com> (443)
* Instruqt CDN - static resources
  * <https://cdn.instruqt.com> (443)
  * <https://static.instruqt.com> (443)
* Instruqt Sandbox environments
  * https\://\*.env.play.instruqt.com (443) - Secure proxy to Sandboxes
  * wss\://\*.env.play.instruqt.com (443) - Secure WebSocket traffic to enable terminal and virtual browser sessions
  * [\*.instruqt.io](broken://spaces/hbHeawlqOTpTeluKxJpd) (80, 443, 1024-65535) - In case [external ingress](/reference/platform/networking.md#unauthenticated-tcp-udp-traffic) has been enabled for sandbox VMs. Note that the type of traffic can be anything, depending on the applications running within the sandbox.

### **Third party providers (required)**

* Google Fonts - Fonts
  * <https://fonts.googleapis.com> (443)
  * <https://fonts.gstatic.com> (443)
* Firebase Authentication - Authentication and session management
  * <https://firebase.googleapis.com> (443)
  * <https://firebaseinstallations.googleapis.com> (443)
  * <https://identitytoolkit.googleapis.com> (443)
  * <https://securetoken.googleapis.com> (443)

### Analytics/crashlytics providers (optional)

* Sentry - Crash analytics
  * <https://o158370.ingest.sentry.io> (443)
* Hotjar - Behavior analytics
  * <https://static.hotjar.com> (443)
* Google Analytics / Tag Manager - Usage analytics
  * <https://www.googletagmanager.com> (443)
  * [https://www.google-analytics.com](/getting-started/set-up-instruqt.md) (443)
  * https\://\*.google-analytics.com (443)