WebRTC Leak Test
Check if WebRTC is exposing your real IP address behind a VPN
What is a WebRTC leak?
WebRTC (Web Real-Time Communication) is a browser technology used for video calls, voice chat, and peer-to-peer file sharing. To establish direct connections, WebRTC needs to discover your network interfaces — including your real IP address.
Even when using a VPN, WebRTC can bypass the tunnel and reveal your actual public and local IP addresses to any website. This is known as a WebRTC leak. Most VPN browser extensions can disable WebRTC, and some browsers offer settings to prevent this.
How to prevent WebRTC leaks
- Firefox
- Set media.peerconnection.enabled to false in about:config
- Chrome / Edge
- Use a WebRTC-blocking extension like WebRTC Leak Prevent
- VPN Extension
- Most quality VPN browser extensions include WebRTC leak protection
All tests run locally in your browser. No data is sent to any server.