The hosted domains feature of a website hosting account refers to the amount of registered domain names that you could add within the same account. Registering a domain and hosting it are two totally different services although many people consider them to be the same thing. While the registration signifies that you become the owner of a certain domain name, the hosting element is what really allows you to have a website because this is where your files and emails will be. Because these are two different services, you can register a new domain address with one company and host it with another by changing its name servers (DNS) - the domain will work in the exact same way just as if it was registered and hosted using the same company. It is also extremely important to know that changing the hosting means directing the domain name to another company and not transferring it.