110 Response is Stale

HTTP Warning code 110 Response is Stale is used in combination with the Warning header and included with HTTP responses to indicate the response is stale. This code is generated by the cache when the freshness lifetime for the response has expired.

Example

Warning: 110 www.example.re "Response is Stale"

See also

• RFC 7234: HTTP Caching (obsoleted)
• RFC 9111: HTTP Caching
• Warning
• Caching
• HTTP status codes