A domain name is a translation for a specific IP address. Your web pages
are hosted on physical servers who each have their unique IP address e.g.
207.142.131.236 (4 groups of 3 digits, each with a maximum value of
255).
Because it would be very difficult to remember all these IP addresses, they are linked to domain names e.g. uwdomein.be.
When you type in your browsers address bar "
hostbasket.com", your computer connects to a DNS server (read more: name servers). These name servers hold enormous tables with domain names and their associated IP address. Name servers link those pairs of data.