DNS Leak Detection
Are your DNS queries revealing your browsing history?
DNS (Domain Name System) translates website names to IP addresses. When you use a VPN, your DNS queries should go through the VPN tunnel. A DNS leak occurs when queries bypass the VPN, exposing your browsing activity to your ISP.
What is a DNS Leak?
✓ Secure Configuration
Your DNS queries go through your VPN or a privacy-focused DNS provider like Cloudflare (1.1.1.1) or Quad9 (9.9.9.9).
✗ DNS Leak
Your DNS queries go to your ISP's DNS servers, revealing every website you visit even when using a VPN.
Why DNS Privacy Matters
Browsing History Exposure
Your ISP can see every website you visit through DNS queries, even on HTTPS sites.
Data Collection
ISPs can sell this browsing data to advertisers or share it with government agencies.
Targeted Advertising
DNS data reveals your interests and can be used to build detailed profiles for ad targeting.