WebRTC Leak Test

A WebRTC leak is when your browser exposes your real local or public IP address through the WebRTC API, even when you're using a VPN or proxy. Because WebRTC gathers IP addresses to establish peer-to-peer connections, a website can read them via JavaScript and uncover your true location.

Run this test. It compares the public IP address WebRTC discovers via STUN with the IP address of your HTTP connection. If they differ — for example, WebRTC shows your real IP while you're connected through a proxy — the tool flags it as a leak.

Not always. Some VPNs route WebRTC traffic through the tunnel and prevent leaks, but many do not. Even with a VPN active, your browser can still expose your real IP through WebRTC unless the VPN or an extension specifically blocks it. Always verify with a leak test.

You can disable WebRTC in some browsers' settings or via a trusted browser extension that blocks WebRTC IP leaks. Alternatively, use a proxy or VPN that handles WebRTC traffic correctly. After applying a fix, re-run this test to confirm your IP is no longer exposed.