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 type in an Internet browser to reach a site, while the hosting space is where your website files is going to be. These are two closely connected, but individual services, while 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 which you can include as hosted i.e. you can have the web content for them in some account even if the domains are actually registered via a different company. In technical terms, it doesn't matter if a domain name is registered and hosted with the same company or is registered with one company and directed to a different one - in either case your sites will operate exactly the same way.