DNS Leak

A DNS leak happens when your DNS ✕ DNS (Domain Name System) is the "phone book of the internet": it translates domain names like cryvor.com into the IP addresses where the servers live. More in the glossary → requests (the name resolution of web addresses) don't go through the encrypted tunnel despite an active VPN ✕ A VPN routes your internet traffic through an encrypted external server. This hides your real IP address and stops third parties — like your provider or public Wi-Fi — from seeing what you do. More in the glossary → , but directly through your internet provider. As a result, they can see which websites you visit despite the VPN, and you lose part of your privacy. Good VPNs prevent this with their own DNS protection and route all requests securely through the tunnel. You can check whether a VPN is leak-proof with online DNS leak tests. See which providers protect reliably in the best VPN comparison.