What is a WebRTC leak?

WebRTC (built into every browser for video calls) can expose your real IP even when you're behind a VPN, because it uses STUN/ICE to find peer connectivity. Most reputable VPNs block this, but some browser configs leak.

Options: (1) enable your VPN's "WebRTC protection," (2) install the uBlock Origin extension and toggle "Prevent WebRTC from leaking local IP addresses," (3) use a browser like Brave that blocks by default, (4) manually disable WebRTC in about:config (Firefox).

WebRTC Leak Test

Tests whether WebRTC reveals your real IP behind a VPN.

WebRTC leak test

Privacy: runs entirely in your browser. WebRTC candidate gathering is a native browser API — no data is sent to us.

Ready.

Result

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Click "Run test" to probe WebRTC.