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 website address that you type in a browser to reach a site, while the hosting space is where your website files will be. These are 2 closely connected, but independent services, although many people believe that registering the domain name is enough. Just like the disk space and the monthly traffic features which a given hosting plan features, there are a certain number of registered domains you can add as hosted which means that you can have the web content for them in some account even if the domains are actually registered via a different provider. In technical terms, it does not matter whether a domain is registered and hosted with the exact same company or is registered with one company and pointed to a different one - either way your sites will operate exactly the same way.