In order to create a web site, you need two things - a domain and a website hosting plan for it. The domain registration is the actual web address which you type in a web browser to access a website, while the hosting space is where your website data is going to be. These are two very closely related, but separate services, even though many people assume that registering the domain name is enough. Similar to the disk space and the monthly traffic features which a given hosting plan offers, there are a certain number of registered domains you can include as hosted which means that you can have the web content for them in some account even if the domains are in fact registered using a different service provider. In technical terms, it doesn't matter whether a domain is registered and hosted with the exact same company or is registered with one company and directed to a different one - in either case your sites will operate exactly the same way.