If you wish to direct a domain name that you have to some other domain address or subdomain, the best way to do this 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's directed to. This way, if you use a web design service by some provider that gives you a subdomain, you can use an actual domain and not only will it be directed to the website that you've created, but it'll also be displayed in the browser address bar at all times. Alternative possible uses of a CNAME record are to redirect all the targeted traffic from different subdomains to their main Internet 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 simply because this type of a record set up for the main domain name renders it impossible to use e-mail addresses.