There are several ways to redirect a domain name to an alternative domain or subdomain and one of them is by setting up a CNAME record. In case you own a domain and you have developed a site using some online service which supplies 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're going to achieve by doing this is that www.your-domain.com is going to be in the browser address bar while it opens the already mentioned Internet site from the servers of the third-party provider. You should 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 provider and working email addresses 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 provider.