You can check whether there’s a DNS leak over your network by simply using the DNS leak test tool by Astrill. Within 10 seconds it’ll let you know if your network is secure or not. You can simply go to the DNS leak test page and click on “Run Standard Test”. The tool will start checking whether there is any DNS leak or not and once it is done with the test, it’ll show you the result.

To stay safe from DNS leaks, use a reliable VPN that has strong encryption and that provides DNS and IP leak guarantee. Also, keep clearing your DNS cache from time to time in order to prevent any DNS leaks in future.

When your DNS leaks, your online browsing activity becomes trackable by your ISP and the web servers that you try to connect are able to locate your actual location.

Yes, a VPN masks your DNS and IP address, providing you complete anonymity over the web. With a VPN, you can easily hide your DNS and access any geo-restricted website or platform.

A number of domain names are sent to your client to resolve within a certain test domain as part of the DNS leak test. Your client sends each request to the DNS server you've set up.