A DNS leak test is a tool that checks if your VPN or proxy is leaking your DNS requests, revealing your true IP address. It works by sending DNS requests and checking what IP address they originate from.
A DNS leak test is an online tool used to check if your VPN or proxy service is leaking your DNS requests and exposing your real IP address. When you connect through a VPN or proxy, all your internet traffic should be routed through the encrypted tunnel provided by the service.
However, sometimes DNS requests bypass the VPN tunnel and go through your default ISP's DNS servers instead. This exposes your true location and IP address, which defeats the purpose of using a VPN or proxy. DNS leak tests check for this leakage.
They work by sending DNS requests through your internet connection and checking the source IP address it's coming from. If it detects your real IP instead of your VPN's IP, that indicates a DNS leak that needs to be fixed. Most leak testing tools will also tell you exactly which DNS server is leaking your requests.
It's important to run a DNS leak test any time you set up a new VPN or proxy service to ensure your traffic is fully encrypted and anonymous. The test only takes a few seconds and confirms your DNS requests are not exposing any personal information or revealing your true location.
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