There are lots of ways to point a domain name to an alternative domain or subdomain and one of them is by setting up a CNAME record. If you own a domain name and you've set up a site through some on-line service that provides you with a service subdomain, you could easily link the two by setting up a CNAME record for your-domain.com that redirects to subdomain.provider.com. What you will achieve as a result is that www.your-domain.com will be in the Internet browser address bar while it opens the already mentioned website from the servers of the third-party company. It is important to know that if you set up a CNAME record, any other records your domain address may have will stop functioning, so you can't have both a CNAME record pointing to one provider and functioning e-mail address with another one. The CNAME record is always an alpha string, not a number, and often further configuration may be required with the other provider.