Basically, a domain is a name. When we think about websites we think of “something dot com”, like “xodmedia.com”. This is your domain name. But for https://xodmedia.com to actually take us to a website, that address has to correspond to a numerical (IP) address. Something like: 192.168.1.101. Try typing that number in your URL bar. It will take you to our home page.
But having to remember “192.168.1.101” is unpractical. So the brilliant internet people created the idea of domain names. This allows us to register a domain (name) we can actually understand and remember, to a specific numerical address.
Registering your domain means that all the servers around the world understand that anytime someone enters “http://.xodmedia.com”, they will end up at the IP address 192.168.1.101.