# WebRTC Leak Test

*Live tool: in a browser this page shows the connection of whoever opens it. Below: what it checks and the answers it gives.*

### What is a WebRTC leak?

WebRTC lets browsers make video and voice calls directly. To connect, the browser finds out its own addresses and can share them with the page. With a VPN on, the address it finds should be the VPN's. If it finds your provider's address instead, any site can read your real IP: that's a WebRTC leak.

### Local addresses

Modern browsers hide your local network address (like 192.168.1.20) behind a random name ending in .local. Seeing one of those is normal and not a leak.

### How to stop a WebRTC leak

- **Firefox:** type about:config in the address bar and set media.peerconnection.enabled to false.
- **Chrome, Edge, Brave:** install Google's "WebRTC Network Limiter" extension, or in uBlock Origin's settings tick "Prevent WebRTC from leaking local IP addresses".
- **VPN apps:** many have a setting that blocks WebRTC leaks. Turn it on, then run this test again.

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Source: https://whoseesmyip.com/webrtc-leak-test · WebRTC Leak Test: does your browser reveal your real IP? · What to find where: https://whoseesmyip.com/llms.txt