WebRTC Exposure Test
WebRTC can expose local or public ICE candidates. This test reports what the browser actually gathers; a public STUN address alone does not prove VPN bypass.
This test contacts the STUN server stun.cloudflare.com to discover ICE candidates.
No WebRTC address leak detected
Tip: run again with your VPN on/off to compare results.
What is WebRTC?
WebRTC (Web Real-Time Communication) is a technology that enables peer-to-peer communication directly between browsers. While this is great for video calls and file sharing, it can also be exploited to discover your real IP address.
How WebRTC Works
- • Discovers local network interfaces
- • Uses STUN servers to find public IP
- • Creates ICE candidates for connection
- • Bypasses proxy/VPN in some cases
Privacy Risks
- • Reveals local IP addresses
- • Can expose public IP behind VPN
- • Works without user permission
- • Difficult to detect without tools
How to Protect Yourself
Browser Settings
- • Disable WebRTC in browser settings
- • Use WebRTC blocking extensions
- • Enable strict privacy modes
- • Use browsers with WebRTC controls
Browser Extensions
- • WebRTC Leak Prevent
- • uBlock Origin (advanced settings)
- • Privacy Badger
- • Browser-specific WebRTC blockers
Advanced Methods
- • Use Tor Browser
- • VPN with WebRTC protection
- • Firewall rules blocking STUN
- • Virtual machines for isolation
Browser-Specific Protection
Firefox
Type about:config in address bar, then set:
media.peerconnection.enabled = falseChrome
Install WebRTC Network Limiter extension or use command line flag:
--force-webrtc-ip-handling-policy=disable_non_proxied_udpSafari
Go to Preferences → Privacy → Website tracking → Prevent cross-site tracking
Important Note
Disabling WebRTC will break video calling websites like Google Meet, Zoom web client, and other WebRTC-based applications. Consider using dedicated apps for video calls or temporarily re-enabling WebRTC when needed.
Related reading
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