CNAME Record
CNAME records, or Canonical Name records, map an alias name to a canonical domain name.
For example, CNAME records define aliases for A records by pointing one domain to another domain instead of to an IP address. Because a CNAME record maps to a hostname instead of an IP address, any A record changes for the hostname do not affect the functionality of the CNAME record. It always connects to the IP address that is currently associated with the hostname.
CNAME Record Articles
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