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server.identity

STRING, read-only.

Available inall subroutines.

Same as server.hostname but also explicitly includes the POP identifier as the last three characters (e.g., cache-jfk1034-JFK or cache-iad-kiad7000001-IAD).

Newer generations of cache servers now include the POP identifier in server.hostname, rendering server.identity largely redundant.

HINT: server.pop is a better source for the POP identifier.