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Extend Cache

Set the cache lifetime of css, js, and images to the maximum and insert a hash of their contents into the url.

Configuration

For PageSpeed on IIS and PageSpeed on ATS

Enable
pagespeed EnableFilters extend_cache

Enabled by default via RewriteLevel CoreFilters

Disable
pagespeed DisableFilters extend_cache

Risk Classification

Unclassified

Examples that demonstrate optimization in real time are available here.

core
PageSpeed optimization, powered by the official Google PageSpeed SDK

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Some content on this website represents a modified version of the official Google PageSpeed documentation