CNAME Records

A Canonical Name (CNAME) points from an alias domain to a "canonical" domain. A CNAME record is used in lieu of an A record, when a domain/zone or subdomain is an alias of another domain. All CNAME records must point to a domain, never to a direct IP address. The CNAME record consists of the following fields:

• Host - A valid hostname.

• Points To – The canonical name, entered as an FQDN, with or without a trailing dot. This hostname must correctly resolve to an IP address, or the CNAME will not function. Additionally, a wildcard ( * ) can be used at the beginning of canonical name. Some examples include:

  • For example: targetname.example.com or targetname.example.biz.

• TTL - The Time to Live (TTL) for the record. You can provide this value as either an integer or an annotated value (1h = 1 hour). This field is not required, and will be set to the default value if left empty.