The hosted domains feature of a website hosting account indicates the number of registered domains that one can add in the exact same account. Registering a domain address 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 given domain, the hosting aspect is what really permits you to have a site since this is where your data and e-mails will be. Since these are two separate services, it is possible to register a new domain with one company and host it with another by changing its name servers (DNS) - the domain address is going to work in the exact same way just as if it was registered and hosted with the exact same company. Also, it is extremely important to know that changing the hosting means directing the domain address to another company and not transferring it.