If you want to create a web site, you need two things - your own domain and a website hosting plan for it. The domain registration is the actual website address that you enter in a browser to reach a site, while the hosting space is where your site files is going to be. These are 2 very closely related, yet independent services, even though many people assume that registering the domain name is enough. Just like the disk space and the monthly traffic features that a given web hosting plan offers, there are a certain number of registered domain names you can add as hosted i.e. you can have the web content for them in some account even if the domains have been registered using a different 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 another one - in any case your websites will operate the very same way.