If you want to create a web site, you need two things - a 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 website data will be. These are 2 tightly connected, but independent services, while many people think that registering the domain name is enough. Just like the disk space and the monthly traffic features that a given website hosting plan has, 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 if the domains have been registered through a different service provider. In technical terms, it doesn't matter if a domain is registered and hosted with the exact same company or is registered with one company and pointed to another - either way your sites will operate the very same way.