If you want to make a website, you need two things - a domain and a website hosting plan for it. The domain registration is the actual website address that you enter in an Internet browser to access a site, while the hosting space is where your site files will be. These are 2 tightly connected, but independent services, although many people assume that registering the domain name 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 domains which you can add as hosted i.e. you can have the web content for them in some account even when the domains are actually registered using a different provider. In technical terms, it doesn't matter if a domain name is registered and hosted using the same company or is registered with one company and directed to another one - in either case your websites will operate in exactly the same way.