WebRTC Leaks: How to Test and Prevent Browser IP Leaks
WebRTC can leak your real IP address even when using a VPN. Learn how to test for WebRTC leaks and disable them in your browser.
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What Is WebRTC?
WebRTC (Web Real-Time Communication) enables browser-based voice, video, and P2P communication without plugins. While useful for video calls and screen sharing, WebRTC can reveal your real IP address to websites, even when connected to a VPN.
How WebRTC Leaks Happen
WebRTC uses STUN/TURN servers to establish peer-to-peer connections. During this process, your browser may reveal both your VPN IP and your real local network IP to websites. This happens outside the VPN tunnel because WebRTC operates at the browser level.
How to Fix WebRTC Leaks
- Disable WebRTC in Your Browser: Firefox has a built-in setting. Chrome requires extensions like WebRTC Leak Prevent
- Use a VPN with WebRTC Leak Protection: Some VPN apps block WebRTC leaks at the system level
- Test Regularly: Use online WebRTC leak test tools to verify your real IP is not being exposed
- Use the VPN Browser Extension: Many VPNs offer browser extensions that manage WebRTC settings automatically
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