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

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

Syntax

Age: <delta-seconds>

Directives

<delta-seconds>

A non-negative integer, representing time in seconds the object has been in a proxy cache.

Examples

Age: 24

Specifications

Specification Title
RFC 7234, section 5.1: Age Hypertext Transfer Protocol (HTTP/1.1): Caching

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support Yes Yes Yes Yes Yes Yes
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support Yes Yes Yes Yes Yes Yes Yes

See also

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Colaboradores desta página: fscholz
Última atualização por: fscholz,