If you wish to forward a domain name that you have to a different domain name or subdomain, one way to do this would be to use a CNAME record. By creating such a record, the domain being pointed loses all of its records (A, MX, and so forth) and instead, it takes the A record of the domain it's pointed to. This way, if you are using a web design service by some provider that gives you a subdomain, you can use an actual domain name and not only will it be directed to the website which you have created, but it will also be displayed in the browser address bar at all times. Alternative possible uses of a CNAME record are to direct all of the targeted 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 instance. The latter will work only by setting up a CNAME record for a subdomain since this kind of a record created for the main domain name renders it impossible to use email addresses.