There are lots of 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 and you have created a site through some online 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'll achieve as a result is that www.your-domain.com is going to be in the browser address bar while it opens the already mentioned Internet site 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 name may have will stop functioning, 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 further configuration may be required with the other company.