113 Heuristic Expiration

HTTP Warning status code 113 Heuristic Expiration is an unofficial HTTP status code, but instead is used in combination with the Warning HTTP Header and included with HTTP response messages to indicate that a cache has heuristically chosen a freshness expiration of greater than 24 hours, and that time has expired.

Example

Warning: 113 www.example.re "Heuristic Expiration"

See also

• HTTP Warning Header