If you'd like to forward a domain name that you have to a different domain or subdomain, one way to do this would be to use a CNAME record. By setting up such a record, the domain address being redirected loses all its records (A, MX, and so on) and instead, it takes the A record of the Internet domain it is redirected to. That 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 forwarded to the website that you have created, but it'll also be displayed in the browser address bar at all times. Other possible uses of a CNAME record are to point all the traffic from different subdomains to their main domain address, or to use the webmail service of your webhosting company by using webmail.your-doman.com, for instance. The latter will work only by setting up a CNAME record for a subdomain since this kind of a record set up for the main domain name makes it impossible to use email addresses.