Without getting too technical, just like your house websites have an address so that people can find them.
Their actual address is a numerical number like 89.57.451.498 but people are hardly likely to remember that now are they?
So websites need a domain name to point to their numerical address.
A domain name is simply the SOMESITE.com a site is known as.
Domain names are rented yearly from domain registrars. At 3001Web we offer discounted domain names via our registrar. You can order your domains from us at a lower price than on a lot of the leading domain sellers like GoDaddy
Our domains start at just £9.98 per year. Unlike other registrars, we do not waste your time trying to sell you a thousand bells and whistles you do not need.