DNS (Domain Name System) creates IP addresses from domain names. Your browser usually uses those IP addresses to load web pages. Every device on the web has its own IP address, and other devices use this IP address to connect to it. But sometimes, leaks happen.
Even if your VPN is on, your gadget can send a DNS request to the wrong server and reveal what website you are currently visiting. However, DNS leaks can happen even if you don't use a VPN. DNS influences your online activity, so fixing any potential DNS leaks is crucial.

