What is a WebRTC leak?

WebRTC is a browser technology for real-time communication (video calls, etc.) that can reveal your real IP address even when using a VPN. The STUN protocol used by WebRTC can bypass VPN tunnels and expose the IP assigned by your ISP. If this tool shows a WebRTC IP different from your public IP, your VPN has a WebRTC leak.

How can I fix a WebRTC leak?

In Firefox, set media.peerconnection.enabled to false in about:config. In Chrome, install a WebRTC-blocking extension. Brave browser blocks WebRTC leaks by default. Most premium VPN browser extensions also include WebRTC leak protection.

VPN & Proxy Detector

About VPN & Proxy Detector

Scans your network connection for VPN and proxy indicators using multiple client-side techniques. Detects your public IP address, checks for WebRTC IP leaks that can expose your real IP behind a VPN, analyzes your DNS resolver, and inspects browser connection metadata. Provides an overall VPN detection assessment based on combined signals.

Public IP detection via ipify.org API
WebRTC leak detection using RTCPeerConnection STUN binding to reveal local and public IPs
DNS resolver identification via Cloudflare DoH whoami query
Browser connection analysis: connection type, downlink speed, round-trip time
Timezone consistency check for VPN detection signals
All checks run client-side — no data sent to third-party analytics services

Frequently Asked Questions

What is a WebRTC leak?: WebRTC is a browser technology for real-time communication (video calls, etc.) that can reveal your real IP address even when using a VPN. The STUN protocol used by WebRTC can bypass VPN tunnels and expose the IP assigned by your ISP. If this tool shows a WebRTC IP different from your public IP, your VPN has a WebRTC leak.
How can I fix a WebRTC leak?: In Firefox, set media.peerconnection.enabled to false in about:config. In Chrome, install a WebRTC-blocking extension. Brave browser blocks WebRTC leaks by default. Most premium VPN browser extensions also include WebRTC leak protection.

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