If you would like to forward a domain name that you have to a different domain name or subdomain, one of the ways to do that would be to use a CNAME record. By setting up such a record, the domain being redirected loses all of its records (A, MX, and so on) and instead, it takes the A record of the domain it's pointed to. In this way, if you use 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 Internet site which you have set up, but it will also be displayed in the Internet browser address bar at all times. Alternative possible uses of a CNAME record are to point all of the 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 due to the fact that this type of a record set up for the main domain name makes it impossible to use email addresses.