If you want to point a domain name that you have to a different domain address 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, etc) and instead, it takes the A record of the domain it is forwarded to. This way, if you are using 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 Internet site that you have created, but it'll also be displayed in the Internet browser address bar at all times. Alternative possible uses of a CNAME record are to forward all of the traffic from various subdomains to their main 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 creating a CNAME record for a subdomain because this type of a record created for the main domain name makes it impossible to use e-mail addresses.