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Asked: 2026-06-17T18:43:58+00:00

How to set Leverage browser caching at ASP.net IIS 7.0 Setting an expiry date

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How to set Leverage browser caching at ASP.net IIS 7.0
Setting an expiry date or a maximum age in the HTTP headers and for pictures in web.config file

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  1. Editorial Team

    For ASP.net, in the global.asax file, in the Application_PreRequestHandlerExecute function call Response.Cache.SetExpires and Response.Cache.SetMaxAge methods.
    For pictures or static content, in IIS 7 web.config use

    <staticContent>
    <clientCache cacheControlMode="UseMaxAge" cacheControlMaxAge="7.00:00:00" />
</staticContent>

    replacing 7 days with desired duration.

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