If you'd like to forward a domain that you have to a different domain or subdomain, one of the ways to do that would be to use a CNAME record. By creating such a record, the domain address being forwarded loses all of its records (A, MX, and so forth) and instead, it takes the A record of the domain name it's pointed to. By doing this, 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 you have set up, but it'll also appear in the web browser address bar at all times. Alternative possible uses of a CNAME record are to direct all the targeted traffic from different subdomains to their main Internet 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 such a record set up for the main domain makes it impossible to use email addresses.