If you would like to forward a domain name that you have to another domain address or subdomain, one way to do this would be to use a CNAME record. By setting up such a record, the domain address being redirected loses all its records (A, MX, etc) and instead, it takes the A record of the domain it's directed to. That way, if you are using a web design service by some provider that gives you a subdomain, you can use an actual domain and not only will it be pointed to the Internet site that you've set up, but it will also appear in the web browser address bar at all times. Other possible uses of a CNAME record are to direct all the traffic from different subdomains to their main domain name, or to use the webmail service of your webhosting company by using webmail.your-doman.com, for example. The latter will work only by setting up a CNAME record for a subdomain due to the fact that this kind of a record set up for the main domain name makes it impossible to use email addresses.