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DNS Leak Test
Check if your VPN is leaking DNS queries to your ISP. See exactly which DNS servers your browser is using.
DNS leak test is an important tool for anyone concerned about online privacy. When using a VPN, your DNS requests should go through the VPN tunnel. A DNS leak exposes those requests to your ISP — revealing the websites you visit. Run this test to verify your DNS is protected.
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Ready to Test DNS Leak
Detects which DNS servers your browser is using and checks for ISP leaks
🔒 Privacy: No browsing history or DNS queries are logged by us. Uses public IP APIs only.
What Is a DNS Leak?
Every time you visit a website, your device sends a DNS query to translate the domain name into an IP address. With a VPN, these queries should go through the VPN's encrypted tunnel to private DNS servers.
A DNS leak happens when these queries bypass your VPN and go directly to your ISP's DNS servers — revealing every website you visit to your ISP, even when your VPN is connected.
Frequently Asked Questions
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Also Check WebRTC Leaks
DNS isn't the only way your VPN can leak. Your browser's WebRTC can also expose your real IP. Run our WebRTC Leak Test too.
Run WebRTC Leak Test →🔧 Related Tools
→ WebRTC Leak Test→ IP Lookup→ DNS Lookup→ Link Checker→ WHOIS LookupView All Tools →⚡ Quick Info
TypePrivacy Test
ProcessingPublic APIs
Account RequiredNo
Data LoggedNone
ProtocolDNS/HTTPS