If you are trying to keep online activities anonymous and private with VPN service, it is extremely important that all traffic originating from your computer is routed through the VPN network. If any traffic leaks and goes out through the underlying connection, any entity monitoring your traffic will be able to log your activity. You need to know if the supposedly secure VPN connection you are using is actually DNS leak-free.
The Dynamic Name System (DNS) is used to point domain names to actual domain names, like torguard.net. This action normally takes place with your ISP, however when using a VPN service, the request should be sent through the VPN tunnel directly to your VPN provider’s DNS. If when running the DNS leak test you see any servers from your personal ISP, then you have a DNS leak.
At TorGuard we are happy to help our customers by sharing a link to a free, safe, easy-to-use third-party tool to test if your VPN tunnel leaks DNS requests. Visit www.dnsleaktest.com and click the link to test your DNS. You will see something similar to the picture below when you get to the DNS leak test page. Click the “Check for DNS leaks now!” button to start your test.
After running the test, if any of your ISP or location information displays on the following page then you have a DNS leak. It is normal to see Google DNS or TorGuard DNS servers on a test – this is not considered a leak.