If you would like to point a domain name that you have to another domain address or subdomain, a good way to do this would be to use a CNAME record. By setting up such a record, the domain name being pointed loses all of its records (A, MX, and so on) and instead, it takes the A record of the domain name it's directed 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 name and not only will it be redirected to the website that you've set up, but it'll also appear in the Internet browser address bar at all times. Other possible uses of a CNAME record are to forward all the targeted traffic from different subdomains to their main domain, or to use the webmail service of your hosting company by using webmail.your-doman.com, for example. The latter will work only by setting up a CNAME record for a subdomain since this kind of a record created for the main domain name renders it impossible to use e-mail addresses.