If you want to make a web site, you need 2 things - a domain name and a web hosting plan for it. The domain registration is the actual web address that you type in a browser to access a website, while the hosting space is where your site data is going to be. These are 2 closely connected, yet separate services, even though many people believe that registering the domain name is enough. Much like the disk space and the monthly traffic features which a given hosting plan features, there are a certain number of registered domains which you can include as hosted i.e. you can have the web content for them in some account even if the domains are in fact registered through 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 - in either case your websites will operate in exactly the same way.