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Free tool · WebRTC leak test

WebRTC leak test

Many browsers leak your real IP through WebRTC even when you're connected to a VPN. This tool surfaces the leak in real time.

Live · WebRTC leak probe
0 candidates
WebRTC verdict
Probing…

WebRTC is exposing IP addresses that don't match your VPN's exit IP. Consider disabling WebRTC or using a browser extension that blocks it.

Public exit IPv4
Public candidates exposed
0
Local / mDNS candidates
Internal-only addresses; harmless on their own.
0
Different from exit IP
0
How it works

What this test actually does.

The probes, the servers, the assumptions — exposed up front so you know what the result means.

We open a temporary RTCPeerConnection with public STUN servers and harvest every ICE candidate the browser exposes. If any non-VPN address shows up, your browser would leak that IP to remote peers — even with the VPN on. Local (10.x, 192.168.x, .local) addresses are harmless on their own.