If you would like to direct a domain address that you have to some other domain address or subdomain, one of the ways to do this would be to use a CNAME record. By creating such a record, the domain being forwarded loses all of its records (A, MX, and so forth) and instead, it takes the A record of the domain address it is forwarded to. In this way, if you use 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 forwarded to the website that you've set up, but it'll also be displayed in the Internet browser address bar at all times. Some other possible uses of a CNAME record are to redirect all of the visitors from various subdomains to their main domain, or to use the webmail service of your hosting provider by using webmail.your-doman.com, for example. The latter will work only by creating a CNAME record for a subdomain since this kind of a record created for the main domain address makes it impossible to use e-mail addresses.