If you want to create a website, you need 2 things - a domain name and a website hosting plan for it. The domain registration is the actual website address that you enter in an Internet browser to access a website, while the hosting space is where your website files is going to be. These are 2 tightly related, but independent services, although many people think that registering the domain is enough. Just like the disk space and the monthly traffic features that a given web hosting plan offers, there are a certain number of registered domains you can add as hosted i.e. you can have the web content for them in some account even if the domains have been registered through a different firm. 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 pointed to another - either way your sites will operate in exactly the same way.