If you want to point a domain name that you have to a different domain name or subdomain, the best way to do that would be to use a CNAME record. By creating such a record, the domain name being forwarded loses all of its records (A, MX, etc) and instead, it takes the A record of the domain address it is forwarded to. That way, if you are using a web design service by some company that gives you a subdomain, you can use an actual domain name and not only will it be redirected to the website that you have set up, but it will also appear in the Internet browser address bar at all times. Other possible uses of a CNAME record are to point all the traffic from various subdomains to their main domain name, or to use the webmail service of your hosting provider 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 such a record created for the main domain address renders it impossible to use e-mail addresses.