There are many ways to point a domain address to another 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 using some online service which supplies you with a service subdomain, you can easily link the two by setting up 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 will be in the Internet browser address bar while it opens the already mentioned Internet site 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 address may have will stop functioning, so you can't have both a CNAME record directing to one provider and working e-mail address with a different one. The CNAME record is always an alpha string, not a number, and sometimes further configuration may be needed with the other provider.