If you would like to direct a domain address that you have to some other domain name or subdomain, one of the ways 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, etc) and instead, it takes the A record of the domain name it is forwarded to. In 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 forwarded to the website that you have created, but it'll also appear in the web browser address bar at all times. Alternative possible uses of a CNAME record are to point all of the traffic from different subdomains to their main domain, or to use the webmail service of your webhosting company by using webmail.your-doman.com, for instance. 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 renders it impossible to use e-mail addresses.