Age

The Age header contains the time in seconds the object was in a proxy cache.

The Age header is usually close to zero. If it is Age: 0, it was probably fetched from the origin server; otherwise, it was 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 header name no

Syntax

Age: <delta-seconds>

Directives

<delta-seconds>

A non-negative integer that is time in seconds the object was in a proxy cache.

Examples

Age: 24

Specifications

Specification
Hypertext Transfer Protocol (HTTP/1.1): Caching (HTTP/1.1)
# header.age

Browser compatibility

BCD tables only load in the browser

See also