If you wish to make a website, you need two things - your own domain and a web hosting plan for it. The domain registration is the actual website address which you enter in a web browser to reach a website, while the hosting space is where your site files will be. These are 2 closely connected, yet individual services, while many people assume that registering the domain is enough. Very similar to the disk space and the monthly traffic features that a given web hosting plan has, 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 when the domains are in fact registered through 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 pointed to another one - either way your sites will operate in exactly the same way.