There are lots of ways to direct a domain to an alternative domain or subdomain and one of them is by creating a CNAME record. In case you own a domain and you have developed a website through some online service that provides you with a service subdomain, you can easily link the two by creating a CNAME record for your-domain.com that points to subdomain.provider.com. What you will achieve with this is that www.your-domain.com is going to be in the browser address bar while it opens the already mentioned website 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 provider and functioning 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 company.