Expires HTTP header to control the response cache


expires is a response header part of the http cache control header that gives the date/time after which a response in a cache store is considered stale.


In a html meta

<META http-equiv="Expires" content="Tue, 20 Aug 1996 14:25:27 GMT">

where the value is a http timestamp

Documentation / Reference

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HTTP - Cache (Cache-Control Header, Bursting, )

When sending a response, several headers have an influence / control over the cache store, we call them cache control headers The cache control header are: Name Description Cache-Control Define properties...
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Headers are : properties (textual name-value pairs, ie both name and value are text) located in the head of: a http request that the client sends a http response that the server sends The HTTP...

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