If you wish to direct a domain name that you have to some other domain name or subdomain, a good way to do this would be to use a CNAME record. By setting up such a record, the domain name being redirected loses all of its records (A, MX, and so forth) and instead, it takes the A record of the domain it is forwarded 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 site that you have set up, but it'll also be displayed in the web browser address bar at all times. Other possible uses of a CNAME record are to redirect all the visitors from different 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 setting up a CNAME record for a subdomain because this kind of a record created for the main domain renders it impossible to use e-mail addresses.