What Is a DNS Leak?
A DNS leak is a security flaw where your computer sends DNS resolution requests outside the encrypted VPN tunnel, typically to your ISP's default DNS servers. This means your ISP can see every domain name you visit, completely undermining VPN privacy protection.
DNS leaks are one of the most common VPN vulnerabilities. They can occur due to operating system configuration, incorrect VPN setup, IPv6 fallback, or Smart Multi-Homed Name Resolution on Windows.
How to Detect DNS Leaks
DNS leak testing involves making DNS queries while connected to a VPN and checking which DNS servers respond. If the responding servers belong to your ISP rather than your VPN provider, you have a DNS leak.
How VPNWG Prevents DNS Leaks
VPNWG eliminates DNS leaks by design. The WireGuard configuration forces all DNS queries through the tunnel to VPNWG's private DNS servers. Combined with IPv6 leak protection and a kill switch, VPNWG ensures no data ever leaves your device unencrypted. Run the VPNWG DNS Leak Test.