There are lots of ways to point a domain address to an alternative domain or subdomain and one of them is by creating a CNAME record. If you own a domain and you've developed a site through some online service that provides you with a service subdomain, you can easily link the two by setting up a CNAME record for your-domain.com that points to subdomain.provider.com. What you're going to achieve by doing this 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 provider. 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 cannot have both a CNAME record directing to one provider and functioning e-mail address with another. The CNAME record is always an alpha string, not a number, and frequently further configuration may be needed with the other provider.