DNS (Domain Name System) is a service that converts a domain name into an IP address. It allows users to access websites using easy-to-remember names instead of numeric IP addresses.
For example, when you enter www.google.com, DNS finds the correct IP address of Google’s server and connects your browser to the website automatically.
In simple words, DNS is the internet’s phone book. It translates website names into IP addresses so your browser can find the correct server.