If you want to make a web site, you need 2 things - a 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 is going to be. These are two tightly connected, yet independent services, even though many people believe that registering the domain is enough. Similar to the disk space and the monthly traffic features that a given 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 are actually registered using a different 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 websites will function exactly the same way.