A DNS leak happens when DNS queries bypass your VPN and go to your ISP or another resolver, exposing which sites you look up.

Is a DNS leak dangerous?

It can undermine VPN privacy — your ISP or network owner may still see domain names you resolve, even if page traffic is encrypted.

Can websites see my DNS requests?

Websites do not see your full DNS history. Resolvers and network operators on the path to DNS servers can.

After VPN install, OS updates, router changes, or enabling split tunneling. Monthly checks are reasonable for privacy-focused users.

No. Misconfiguration, IPv6, or custom DNS settings can still leak. Always verify with a dns leak test.

DNS Tools

Test for DNS leaks and verify whether your VPN is protecting DNS requests. Detect ISP DNS exposure and improve online privacy.