PageSpeed: Serve Static Assets With An Efficient Cache Policy

Pages with resources that are not cached. HTTP caching can speed up your page load time on repeat visits.

How to Analyse in the SEO Spider

To populate this filter the PageSpeed Insights API must be connected via ‘Config > API Access > PSI’.

View URLs with this issue in the ‘PageSpeed’ tab and filter and use the lower ‘PageSpeed Details’ tab to click on the issue on the left-hand side, and see details of the static assets on the right-hand side.

Bulk export the pages and resources via ‘Reports > PageSpeed > Serve Static Assets With An Efficient Cache Policy’.

What Triggers This Issue

This issue is triggered when pages have resources that are not cached.

Lighthouse considers a resource ‘cacheable’ if it’s a font, image, media file, script of stylesheet with a 200 response – and doesn’t have an explicit no-cache policy.

How To Fix

Cache static resources using HTTP caching. A long cache lifetime can speed up repeat visits to pages.