There are various ways to point a domain name to another domain or subdomain and one of them is by setting up a CNAME record. In case you own a domain name and you have developed a website through some online service which provides you with a service subdomain, you can easily link the two by setting up a CNAME record for your-domain.com that redirects to subdomain.provider.com. What you'll achieve by doing this is that www.your-domain.com is going to be in the Internet browser address bar while it opens the already mentioned site from the servers of the third-party company. It is essential to know that if you set up a CNAME record, any other records your domain name may have will stop functioning, so you cannot have both a CNAME record pointing to one company and functioning email addresses with a different one. The CNAME record is always an alpha string, not a number, and often more configuration may be required with the other company.