If you would like to point a domain name that you have to another 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 being pointed loses all of its records (A, MX, and so on) and instead, it takes the A record of the domain name it is forwarded to. That way, if you are using a web design service by some company that gives you a subdomain, you can use an actual domain and not only will it be redirected to the site you have created, but it will also appear in the browser address bar at all times. Some other possible uses of a CNAME record are to direct all the targeted traffic from different subdomains to their main domain name, 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 because this type of a record created for the main domain name makes it impossible to use e-mail addresses.