When you use a VPN, your DNS requests (which translate domain names like google.com into IP addresses) should also go through the encrypted VPN tunnel. If they don't, it's called a DNS leak.
Why is this bad?
A DNS leak means your ISP can still see every website you visit, even though you are using a VPN. This defeats the purpose of using a VPN for privacy.
How to prevent DNS Leaks?
- Use a VPN with built-in DNS leak protection.
- Manually configure your device to use secure DNS servers (like Cloudflare's 1.1.1.1 or Google's 8.8.8.8).
- Regularly test your connection using our VPN Tester tool.