If you wish to create a website, you need 2 things - a domain name and a web hosting plan for it. The domain registration is the actual website address which you enter in a web browser to access a website, while the hosting space is where your website files is going to be. These are two closely connected, yet independent services, even though many people believe that registering the domain name is enough. Very similar to the disk space and the monthly traffic features which a given website hosting plan features, there are a certain number of registered domains you can add 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 firm. In technical terms, it doesn't matter if a domain name is registered and hosted with the exact same company or is registered with one company and directed to a different one - in any case your websites will operate in exactly the same way.