There are many ways to direct a domain to an alternative domain or subdomain and one of them is by creating a CNAME record. If you own a domain name and you have set up a website using 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 directs to subdomain.provider.com. What you are going to achieve with this is that www.your-domain.com will be in the web browser address bar while it opens the already mentioned Internet site from the servers of the third-party provider. It is essential to know that if you create 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 email addresses with another one. The CNAME record is always an alpha string, not a number, and often additional configuration may be needed with the other provider.