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Faster WordPress.
Guides and working checklists for caching, images, measurement and safer optimization.
Showing 37–42 of 70 guides
Mobile downloads the desktop image: debug srcset and sizes
Inspect the chosen image candidate, rendered width and device pixel ratio to find oversized mobile image downloads.
Read the guideNo Core Web Vitals field data? Interpret the gap before changing the site
Understand missing page and origin data, keep lab evidence useful, and avoid inventing conclusions from an unavailable CrUX report.
Read the guideNo-cache versus no-store: diagnose WordPress response headers
Understand confusing Cache-Control headers, separate browser and shared caches, and verify public pages without exposing private responses.
Read the guideOld assets survive every purge: investigate a service worker
Find browser-side service-worker caching that can keep old WordPress assets visible after application and CDN purges.
Read the guidePage cache, object cache and browser cache: which problem does each solve?
Map the cache layers in a WordPress stack and learn which layer to inspect when pages are slow or stale.
Read the guidePageSpeed Insights: why field data and lab scores disagree
Understand the report's real-user and simulated sections, missing field data and how to verify a recent performance change.
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