Domain name servers (DNS)
Every website on the internet has a network address, consisting of four sets of three digits. For example, the BBC website's address is 151.101.128.81.
Addresses like this are hard for users to remember. Instead, websites are accessed using domain names, for example, ‘bbc.co.uk’. Domain names are much easier for users to remember.
When a user visits a website, they enter the domain name as a URL. For example, the BBC website’s address is www.bbc.co.uk. A domain name server takes the domain name and looks up its equivalent network address. The user’s request is then forwarded to the server that resides at that network address.
