If you would like to direct a domain name that you have to another domain or subdomain, one way to do this would be to use a CNAME record. By setting up such a record, the domain being forwarded loses all of its records (A, MX, etc) and instead, it takes the A record of the domain it is directed 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 and not only will it be redirected to the Internet site which you have set up, but it will also be displayed in the web browser address bar at all times. Some other possible uses of a CNAME record are to direct all of the traffic from various subdomains to their main Internet domain, or to use the webmail service of your hosting company by using webmail.your-doman.com, for instance. The latter will work only by setting up a CNAME record for a subdomain due to the fact that such a record set up for the main domain makes it impossible to use email addresses.