A domain name gives us a that easy way to reference a website’s location. So in the example “Company.com”, the “.com” part of the example we used is the domain extension. There are many different domain extensions, the common top level extensions are “.com” for commercial, “.org” for Organization, “.net” for Network, “.Gov” for Government, “.Edu” for Education and so on. Additionally each country has their own domain extension. In the US we have .us, the United Kingdom is .UK, and so on. There are different rules for who can purchase international extensions, some countries require you to have a local address to reserve the extension. Note that you never actually own a domain name, but rather rent it.