There are several ways to point a domain address to another domain or subdomain and one of them is by creating a CNAME record. In case you own a domain name and you've set up a site through some on-line service which provides you with a service subdomain, you can easily link the two by creating a CNAME record for your-domain.com that directs to subdomain.provider.com. What you'll achieve with this is that www.your-domain.com is going to be in the web browser address bar while it opens the already mentioned website from the servers of the third-party company. It is very important to know that if you set up a CNAME record, any other records your domain address may have will stop functioning, so you cannot have both a CNAME record pointing to one company and working email addresses with a different one. The CNAME record is always an alpha string, not a number, and frequently more configuration may be required with the other company.