In order to make a web site, you need 2 things - a domain name and a website hosting plan for it. The domain registration is the actual web address that you type in a web browser to reach a site, while the hosting space is where your site data is going to be. These are two tightly related, yet individual services, even though many people think that registering the domain is enough. Much 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 that you can add as hosted which means that you can have the web content for them in some account even when the domains have been registered using a different company. In technical terms, it does not matter if a domain 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 operate in exactly the same way.