Age header

The HTTP Age {{Glossary("response header")}} indicates the time in seconds for which an object was in a proxy cache.

The header value is usually close to zero. If the value is 0, the object was probably fetched from the origin server; otherwise, the value is usually calculated as a difference between the proxy's current date and the {{HTTPHeader("Date")}} general header included in the HTTP response.

Header type	{{Glossary("Response header")}}

Syntax

Age: <delta-seconds>

Directives

<delta-seconds>
- : A non-negative integer that represents the time in seconds for which the object was in a proxy cache.

Examples

Age: 24

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