If you want to point a domain that you have to a different domain or subdomain, a good way to do that would be to use a CNAME record. By setting up such a record, the domain name being redirected loses all its records (A, MX, and so on) and instead, it takes the A record of the Internet domain it's pointed to. This way, if you use 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 set up, but it will also appear in the web browser address bar at all times. Other possible uses of a CNAME record are to point all of the visitors from different subdomains to their main domain address, or to use the webmail service of your hosting provider by using webmail.your-doman.com, for example. The latter will work only by setting up a CNAME record for a subdomain simply because this type of a record set up for the main domain name makes it impossible to use e-mail addresses.