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DNS Leak Test

Your current connection details:

  • IP Address: 216.73.216.34
  • City: Columbus
  • Country: United States United States
  • ISP: Amazon.com, Inc.

This tool helps you test if your DNS requests are leaking outside your VPN or secure connection. A DNS leak can expose your real location, ISP, and browsing history to third parties, compromising your privacy. Run the test to check for any vulnerabilities.

What is a DNS Leak?

A DNS leak happens when your device's DNS queries are not routed through your VPN or proxy server as intended. Instead, they go directly to your Internet Service Provider's (ISP) DNS servers or other unsecured servers. This can reveal your actual IP address, location, and online activities to your ISP, websites, or even malicious actors, even if you're using a VPN to hide your traffic.

DNS (Domain Name System) is like the phonebook of the internet—it translates domain names (like example.com) into IP addresses that computers can understand. When you visit a website, your device sends a DNS query to resolve the domain name. If this query leaks, it defeats the purpose of using privacy tools like VPNs.

Common Causes of DNS Leaks

  • Improper VPN Configuration: Some VPNs may not handle DNS queries securely, especially if IPv6 is enabled or if the VPN software is outdated.
  • WebRTC Leaks: Browsers using WebRTC (for video calls, etc.) can expose your real IP via STUN servers.
  • Transparent DNS Proxies: Some ISPs intercept DNS requests and redirect them to their own servers.
  • Smart Multi-Homed Name Resolution: Windows feature that sends DNS queries to all available DNS servers.

Why Test for DNS Leaks?

  • Protect Privacy: Prevent your ISP or others from logging your browsing history.
  • Ensure VPN Effectiveness: Verify that your VPN is working as expected and not leaking information.
  • Avoid Geo-Restrictions Bypass Issues: If you're using a VPN to access region-locked content, a leak could reveal your true location.
  • Enhance Security: Reduce the risk of targeted attacks or surveillance by maintaining anonymity.

To perform the test, click on the Standard or Extended Test buttons above. The Standard Test checks with 6 servers for quick results, while the Extended Test uses 50 servers (25 IPv4, 25 IPv6) for a more thorough analysis.