A Canonical Name or CNAME record is a type of DNS record that maps an alias name to a true or canonical domain name. CNAME records are typically used to map a subdomain such as www or mail to the domain hosting that subdomain’s content.
CDN users can utilize CNAME to mask the 5centsCDN hostname playback with their own custom name. To achieve this objective, a CNAME must be established in the user’s DNS and pointed to the CDN hostname.