Detect whether WebRTC exposes your real IP address even when connected through a proxy or VPN.
Click "Check WebRTC Leaks" to scan your browser for exposed IP addresses.
Review the results: any IP shown here is visible to websites via WebRTC.
If your real IP appears, disable WebRTC in your browser settings or use an extension.
Local (private network) IP addresses exposed by WebRTC, public IP addresses discovered via STUN servers, whether WebRTC is enabled in the browser, and whether detected IPs differ from your proxy exit IP.
WebRTC leaks are a critical vulnerability for proxy users. Anti-bot systems use WebRTC fingerprinting to unmask proxy users by comparing the WebRTC-discovered IP against the HTTP-visible IP. If they differ, the visitor is flagged as using a proxy. Disabling or blocking WebRTC is necessary for anonymity.
The tool creates an RTCPeerConnection with public STUN servers (stun:stun.l.google.com:19302). WebRTC ICE candidate gathering reveals IP addresses in the SDP (Session Description Protocol) offer. The test parses these candidates to extract IPv4 and IPv6 addresses that would be visible to any website using the same technique.
A WebRTC leak exposes your real IP address through the WebRTC protocol, bypassing your proxy or VPN. Websites can use JavaScript to trigger STUN requests that reveal your actual IP, even when all HTTP traffic goes through a proxy.
In Firefox: set media.peerconnection.enabled to false in about:config. In Chrome: install an extension like WebRTC Leak Prevent. In Brave: Settings > Privacy > WebRTC IP Handling Policy > Disable.
Most browsers have WebRTC enabled by default (Chrome, Firefox, Edge, Opera, Brave). Safari has limited WebRTC support and is less prone to leaks. Headless browsers used for scraping typically do not have WebRTC enabled.
Yes. Antidetect browsers like Multilogin, GoLogin, and AdsPower can spoof or disable WebRTC, preventing IP leaks while maintaining a consistent browser fingerprint. This is their primary selling point for proxy users.
Run this check again from a clean residential proxies exit and see what actually reaches the other side.