Registering a domain name and hosting one is sometimes mistaken by a lot of people to be one and the same thing. These are in reality 2 separate services - the domain name registration is the actual name and nothing else, while the hosted domains feature reveals the number of already registered domain addresses which you could accommodate in the same website hosting account and have website data and e-mails for them. Your websites will work in precisely the same way regardless if the domain names are registered and hosted at the same place or are registered with company A and pointed to company B. Simply registering a domain name without hosting it will grant you ownership, but will not allow you to have a web site if you don't host this domain in some account so that records for it are set up and it starts opening the information from that account.