There are lots of ways to redirect a domain address to an alternative domain or subdomain and one of them is by setting up a CNAME record. When you own a domain and you have developed a website through some on-line service that provides you with a service subdomain, you could easily link the two by creating a CNAME record for your-domain.com that redirects to subdomain.provider.com. What you'll achieve by doing this is that www.your-domain.com is going to 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 name may have will stop working, so you can't have both a CNAME record pointing to one company and working e-mail address with another. The CNAME record is always an alpha string, not a number, and often more configuration may be needed with the other provider.