There are several 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've created a website through some on-line service which provides you with a service subdomain, you can easily link the two by setting up a CNAME record for your-domain.com that redirects to subdomain.provider.com. What you're going to achieve in this way is that www.your-domain.com will be in the Internet browser address bar while it opens the already mentioned Internet site from the servers of the third-party provider. You should know that if you create a CNAME record, any other records your domain may have will stop working, so you cannot have both a CNAME record pointing to one provider and working email addresses with another one. The CNAME record is always an alpha string, not a number, and often additional configuration may be required with the other provider.