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CNAME — a DNS record that declares its owner name an alias of one canonical domain name and therefore cannot coexist there with other record types.
The record value is published at a specific owner name in the authoritative DNS zone and cached for its TTL. Data format, coexistence with other records, and response behavior are defined by the record type and its applicable specification.
CNAME — a DNS record that declares its owner name an alias of one canonical domain name and therefore cannot coexist there with other record types.
It is placed at the required name in an authoritative zone to provide resolvers and applications with a particular type of data. The recipient interprets the record fields according to that type’s format.
Verify the owner name, type, value, TTL, and the response from every authoritative server. Observe format restrictions and distinguish a missing record from a cached old value.
