There are numerous ways to point a domain address to another domain or subdomain and one of them is by setting up a CNAME record. In case you own a domain and you've 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 points to subdomain.provider.com. What you will achieve in this way 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 important to know that if you set up a CNAME record, any other records your domain name may have will stop working, so you can't have both a CNAME record directing to one company and functioning email addresses with another one. The CNAME record is always an alpha string, not a number, and frequently more configuration may be required with the other company.