VPN Detector — Is Your VPN Working?

Instantly check if your VPN is active and working correctly. This tool tests your public IP, ISP, WebRTC leaks, and DNS status to detect whether you are protected.

100% Private — All checks run in your browser. We do not store or log any data.
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How Does VPN Detection Work?

This VPN detection tool performs multiple checks to determine if your internet connection is routed through a VPN. It examines your public IP address, compares your ISP name against a database of known VPN providers and datacenter hosts, checks for WebRTC IP leaks that can bypass your VPN, and verifies your DNS resolver status.

What We Check

  • Public IP & ISP — Your visible IP address and the Internet Service Provider associated with it. VPN users typically show the VPN provider or a datacenter ISP.
  • VPN Provider Match — We compare your ISP/organization name against 50+ known VPN providers (NordVPN, ExpressVPN, Surfshark, etc.) and datacenter hosting companies.
  • WebRTC Leak Check — WebRTC can reveal your real IP address even when using a VPN. We test for this common leak vector.
  • DNS Status — Your DNS resolver can reveal whether DNS requests are going through your VPN or leaking to your ISP's DNS servers.

Why Check If Your VPN Is Working?

Simply connecting to a VPN does not guarantee complete protection. Common issues include WebRTC leaks that expose your real IP, DNS leaks that reveal your browsing history to your ISP, and kill switch failures. Running regular VPN detection tests ensures your privacy is intact and your VPN is functioning as expected.

What Does "Protected" Mean?

A "Protected" status means your public IP is associated with a known VPN provider or datacenter, no WebRTC leaks were detected, and your DNS appears to be routed correctly. "Not Protected" means your connection appears to be using a residential ISP without VPN indicators. "Leak Detected" means a VPN is partially working but some data is leaking.

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