In order to make a web site, you need 2 things - a domain and a web hosting plan for it. The domain registration is the actual web address which you enter in a web browser to access a website, while the hosting space is where your site data is going to be. These are two very closely connected, but individual services, while many people assume that registering the domain is enough. Just like the disk space and the monthly traffic features which a given website hosting plan has, there are a certain number of registered domains that you can add as hosted which means that you can have the web content for them in some account even if the domains have been registered via a different company. In technical terms, it does not matter whether a domain is registered and hosted with the same company or is registered with one company and directed to a different one - in either case your websites will function the very same way.