In order to create a web site, you need two things - your own domain and a website hosting plan for it. The domain registration is the actual web address that you enter in a browser to access a website, while the hosting space is where your website data will be. These are two very closely connected, but separate services, although many people believe that registering the domain is enough. Just like the disk space and the monthly traffic features that a given web hosting plan has, there are a certain number of registered domain names which you can add as hosted i.e. you can have the web content for them in some account even when the domains are in fact registered through a different service provider. In technical terms, it does not matter whether a domain name is registered and hosted with the exact same company or is registered with one company and pointed to a different one - in any case your sites will operate in exactly the same way.