There are lots of ways to direct a domain to another domain or subdomain and one of them is by creating a CNAME record. When you own a domain and you have set up a site using some online service which supplies you with a service subdomain, you could easily link the two by creating a CNAME record for your-domain.com that points to subdomain.provider.com. What you are going to achieve by doing this is that www.your-domain.com will be in the browser address bar while it opens the already mentioned website 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 may have will stop functioning, so you cannot have both a CNAME record pointing to one company and working e-mail address with another. The CNAME record is always an alpha string, not a number, and sometimes further configuration may be required with the other provider.