WebRTC Leak Test
Free WebRTC leak test: see whether your browser exposes local or public IPs through STUN even when a VPN is active.
WebRTC Leak Test
Detect WebRTC IP leaks that can reveal your real IP address even when using VPN
DNS Resolver
Identify the DNS resolver answering your queries (EDNS), not your VPN egress IP
IPv6 Leak Test
Check if IPv6 traffic is leaking outside of your VPN tunnel
Guide & FAQ
How WebRTC leaks work
Browsers use ICE/STUN for peer connections. Those requests can return your real public IP before the VPN adapter is used, leaking identity to any page running JavaScript.
How to read results
Pass: only your VPN exit IP (and expected local/mDNS candidates). Fail: your ISP public IP appears alongside or instead of the VPN IP.
How to fix a WebRTC leak
Disable WebRTC in Firefox (media.peerconnection.enabled), use a leak-prevention extension in Chrome/Edge, or pick a VPN client that forces WebRTC through the tunnel.
Does WebRTC leak my IP if VPN is on?
It can. Unless WebRTC is disabled or the VPN blocks STUN, browsers may still expose your real IP to websites.
Is this WebRTC leak test free?
Yes. Run it anytime at rookvpn.com/check/vpn-leak-test/webrtc with no account.