Age

The HTTP Age 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 Date general header included in the HTTP response.

Header type Response header
Forbidden request header No

Syntax

http
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

http
Age: 24

Specifications

Browser compatibility

See also