In order to make a web site, you need two things - your own domain name and a web hosting plan for it. The domain registration is the actual website address which you type in a web browser to reach a site, while the hosting space is where your site data will be. These are two very closely connected, but individual services, even though many people assume that registering the domain is enough. Much like the disk space and the monthly traffic features that a given hosting plan provides, there are a certain number of registered domain names which you can include as hosted i.e. you can have the web content for them in some account even when the domains are in fact registered via a different service provider. In technical terms, it doesn't matter if 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.