ZenGuard VPN ★★★★★
Editor’s pick✓No-logs • independent audits
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Best VPNs for Privacy & Streaming
Fast, audited, reliable. Pick one that fits your needs and fix leaks for good.
SwiftShield VPN ★★★★☆
Fastest✓WireGuard by default • multi-hop
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*Affiliate disclosure: we may earn a commission when you buy via our links—at no extra cost to you. We only recommend VPNs that pass our security checks.
About the WebRTC Leak Test
WebRTC lets browsers talk directly for real-time audio/video. The downside: it can reveal your real IP address via STUN candidates even when you’re on a VPN. This test checks if your browser exposes private/local or public IPs in a way that websites could use to identify you.
Quick tips
- Keep your VPN connected while testing so candidates are gathered through the tunnel.
- Look for “No private IP exposed (mDNS active)” — that’s the best outcome.
- Disable “Smart-DNS” features in your router/TV boxes that may bypass the VPN.
- Use modern browsers; Chrome/Edge/Brave support mDNS ICE which hides local IPs.
- If your public IP shows, confirm it matches the VPN’s exit IP (not your ISP).
WebRTC Leak – FAQ
1) What is a WebRTC leak? ▾
When WebRTC gathers connection “candidates” it can reveal your real IP (public or private). A leak means websites could learn that IP even if you’re on a VPN.
2) What does “No private IP exposed (mDNS active)” mean? ▾
Your browser used mDNS for local candidates, so private LAN addresses weren’t exposed. It’s the preferred privacy behavior on modern Chromium and Firefox.
3) Why do I still see my public IP? ▾
Seeing a public IP is normal—just make sure it’s your VPN’s exit IP, not your ISP. If it’s your ISP IP, your browser or network is bypassing the tunnel.
4) Do I need to enter anything to run the test? ▾
No input required—just click Run Test. We create a temporary peer connection and read the candidates your browser exposes.
5) How can I prevent WebRTC leaks? ▾
Keep your VPN on, use browsers with mDNS (Chrome/Edge/Brave/Firefox), and avoid extensions that disable WebRTC entirely—many sites depend on it. If needed, set your browser to hide local IPs behind a proxy/VPN.