The hosted domains feature of a website hosting account indicates the number of registered domain names which you can include in the same account. Registering a domain and hosting it are 2 different services although a lot of people consider them to be the very same thing. While the registration ensures that you become the owner of a given domain address, the hosting element is what actually permits you to have a website considering that this is where your data and email messages are going to be. Because these are two separate services, you can register a new domain name 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 same company. It is also extremely important to know that changing the hosting means pointing the domain to another company and not transferring it.