If you wish to create a website, you need two things - your own domain name and a website hosting plan for it. The domain registration is the actual web address that you enter in a web browser to reach a site, while the hosting space is where your website files will be. These are 2 tightly connected, but separate services, even though many people believe that registering the domain name is enough. Very similar to the disk space and the monthly traffic features that a given website hosting plan provides, there are a certain number of registered domains 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 using the same company or is registered with one company and pointed to a different one - in either case your sites will function exactly the same way.