If you'd like to point a domain address that you have to some other domain address or subdomain, one way to do that would be to use a CNAME record. By setting up 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 it is pointed to. This way, if you use a web design service by some company that gives you a subdomain, you can use an actual domain and not only will it be directed to the Internet site you have created, but it'll also be displayed in the browser address bar at all times. Alternative possible uses of a CNAME record are to direct all of the visitors from various subdomains to their main domain, or to use the webmail service of your webhosting company by using webmail.your-doman.com, for example. The latter will work only by creating a CNAME record for a subdomain since this type of a record set up for the main domain renders it impossible to use email addresses.