In order to make a web site, you need 2 things - a domain and a hosting plan for it. The domain registration is the actual web address which you type in a browser to access a website, while the hosting space is where your site data will be. These are two tightly connected, yet separate services, although many people think that registering the domain name is enough. Much like the disk space and the monthly traffic features that a given hosting plan features, there are a certain number of registered domains that you can include as hosted which means that you can have the web content for them in some account even when the domains have been registered via a different company. In technical terms, it does not matter if a domain name is registered and hosted using the same company or is registered with one company and directed to a different one - in either case your websites will operate the very same way.