In order to create a website, you need two things - your own domain name and a hosting plan for it. The domain registration is the actual web address that you type in a web browser to reach a website, while the hosting space is where your website data is going to be. These are 2 very closely connected, but 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 has, there are a certain number of registered domain names that 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 service provider. In technical terms, it does not matter whether a domain 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 in exactly the same way.