There are numerous ways to direct a domain address to an alternative domain or subdomain and one of them is by setting up a CNAME record. If you own a domain and you have developed a website through some online service which provides you with a service subdomain, you could easily link the two by setting up a CNAME record for your-domain.com that redirects to subdomain.provider.com. What you will achieve in this way is that www.your-domain.com is going to be in the web browser address bar while it opens the already mentioned Internet site from the servers of the third-party company. It is essential to know that if you create a CNAME record, any other records your domain may have will stop working, so you cannot have both a CNAME record pointing to one provider and functioning e-mail address with a different one. The CNAME record is always an alpha string, not a number, and in some cases further configuration may be necessary with the other company.