WebRTC Leak Test
WebRTC, the browser tech behind video calls, can gather your local and public addresses as connection candidates — sometimes revealing your real IP even when a VPN hides it from normal traffic. This test runs the same gathering a website could and shows you every address it found.
Collecting…
What is a WebRTC leak?
When the addresses WebRTC gathers include your real public IP while you are on a VPN. A site running this same check could then see past the VPN. Good VPN apps and browser settings block it.
How do I stop WebRTC leaks?
Use a VPN whose app blocks WebRTC leaks, or restrict WebRTC in the browser: Firefox allows disabling it via media.peerconnection.enabled, and several extensions limit it in Chrome. Then re-run this test to confirm.
This tool also lives in the homepage tool drawer alongside 17 others. Browse everything on the tools page or look up any address with the IP lookup.