If you'd like to forward a domain that you have to another domain or subdomain, one of the ways to do this would be to use a CNAME record. By creating such a record, the domain name being pointed loses all its records (A, MX, and so forth) and instead, it takes the A record of the domain name it's pointed to. This way, if you use a web design service by some company that gives you a subdomain, you can use an actual domain and not only will it be redirected to the site that you've set up, but it will also appear in the web browser address bar at all times. Some other possible uses of a CNAME record are to forward all the traffic from various subdomains to their main domain name, or to use the webmail service of your webhosting company by using webmail.your-doman.com, for example. The latter will work only by creating a CNAME record for a subdomain due to the fact that this type of a record created for the main domain address renders it impossible to use e-mail addresses.