If you would like to forward a domain name that you have to another domain address or subdomain, the best way to do this would be to use a CNAME record. By setting up such a record, the domain being redirected loses all its records (A, MX, etc) and instead, it takes the A record of the domain address it's redirected to. By doing this, if you are using a web design service by some company 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 created, but it'll also appear in the browser address bar at all times. Some other possible uses of a CNAME record are to point all of the traffic from different subdomains to their main domain address, or to use the webmail service of your hosting provider by using webmail.your-doman.com, for instance. The latter will work only by creating a CNAME record for a subdomain due to the fact that this kind of a record created for the main domain renders it impossible to use email addresses.