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