Privacy Policy

Last updated: 28 August 2026 · Applies to the Stranix IP browser extension (Chrome, Edge, Firefox, Safari) and the ip.stranix.net API.

In one sentence: the extension stores everything on your device, sends nothing but the request needed to learn your public IP, and the API keeps no account, no profile and no tracker.

1. What the extension does

Stranix IP shows your public IPv4/IPv6 address, your provider (ASN), an approximate location (country/city), the reverse DNS of your address, keeps a local history of changes, and can warn you when you leave a network you marked as trusted (“VPN guard”). It can also run an optional WebRTC leak test.

2. Data the extension stores — on your device only

Your latest IP information (the API response).
Your IP change history (timestamps and addresses), capped by the limit you choose.
Your trusted network (ASN, provider name, IP) if you use the VPN guard.
Your settings (check interval, notifications, badge mode, API hosts).

All of this lives in the browser's local extension storage (storage.local). It is never synchronised to a Google, Mozilla, Microsoft or Apple account, and never sent to us. You can delete it at any time with “Clear history” in the options, or by uninstalling the extension.

3. Data sent to the API

To learn your public IP, the extension sends a GET /json request to v4.ip.stranix.net and v6.ip.stranix.net (every 5 minutes by default, and when you open the popup or click refresh). Like any HTTP request, it carries your IP address and your browser's user-agent string. The extension adds one header, X-Stranix-Client (e.g. ext-chromium/1.0.0), which identifies the extension family and version — not you. No cookie, no account, no device identifier is sent.

The optional WebRTC leak test contacts a public STUN server (stun.l.google.com) directly from your browser; this is how WebRTC works and is subject to Google's own policies. The test only runs when you click “Run test”.

4. What the API keeps

The API answers from local geolocation databases (DB-IP Lite) and performs a reverse-DNS lookup; it does not call any third-party service about you. It writes standard server logs containing the requesting IP address, the answer it gave (country, provider), the user-agent, the X-Stranix-Client value and a timestamp. These logs are used solely to operate and secure the service (abuse and error diagnosis). They are stored on our server in Europe, rotated automatically, and retained for at most 30 days. They are never sold, shared or used for advertising.

5. Permissions requested and why

storage — save your settings, history and trusted network locally.
alarms — schedule the periodic background check.
notifications — tell you when your IP changes or when the VPN guard trips (both can be disabled).
Host access to ip.stranix.net, v4.ip.stranix.net, v6.ip.stranix.net — the only servers the extension talks to.

The extension does not read your browsing history, page content, tabs or bookmarks.

6. Your rights

Under the GDPR you may ask for access to or deletion of server log entries related to your IP address. Because the logs contain nothing but the IP itself, we will need that IP and an approximate time to locate them. Contact: privacy@stranix.net.

7. Changes

This policy may be updated when the extension gains features. The date at the top reflects the latest revision; material changes are announced in the extension's release notes.

8. Who we are

Stranix IP is published by Stranix (Gilles Fauvie), Belgium. The service is hosted in the European Union.