There are many ways to direct a domain address to a different domain or subdomain and one of them is by creating a CNAME record. When you own a domain name and you have developed a site using some on-line service that provides you with a service subdomain, you can easily link the two by setting up a CNAME record for your-domain.com that directs to subdomain.provider.com. What you will achieve in this way is that www.your-domain.com will be in the web browser address bar while it opens the already mentioned Internet site from the servers of the third-party provider. It is important to know that if you create a CNAME record, any other records your domain address may have will stop functioning, so you can't have both a CNAME record directing to one provider and functioning e-mail address with another one. The CNAME record is always an alpha string, not a number, and frequently further configuration may be necessary with the other provider.