In order to create a website, you need two things - a domain name and a web hosting plan for it. The domain registration is the actual web address which you type in an Internet browser to reach a website, while the hosting space is where your site data is going to be. These are two very closely related, yet independent services, even though many people believe that registering the domain is enough. Much like the disk space and the monthly traffic features which a given website hosting plan provides, 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 when the domains are actually registered via a different company. In technical terms, it doesn't matter whether a domain name is registered and hosted with the same company or is registered with one company and directed to another one - either way your sites will function the very same way.