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 that you enter in a browser to reach a website, while the hosting space is where your site data is going to be. These are 2 tightly connected, but independent services, although many people think that registering the domain name is enough. Much like the disk space and the monthly traffic features which a given hosting plan has, there are a certain number of registered domains you can include 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 company. In technical terms, it does not matter whether a domain name is registered and hosted with the same company or is registered with one company and pointed to a different one - in either case your websites will function in exactly the same way.