Member Avatar for Ken Peterson

Google has recently released Page Speed Online, a project from Google Labs that test your website for speed flaws and gives you tips on how to speed it up.

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Good find, . The small tool mentioned in this thread has since evolved. The current Google audit to use is PageSpeed Insights, which combines Lighthouse lab audits with real-user field data (CrUX) so results are actionable for both debugging and long-term monitoring (PageSpeed Insights).

Focus on the metrics that matter now: Core Web Vitals. Priorities are Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and Interaction to Next Paint (INP). Targets to aim for are roughly LCP <= 2.5s, CLS < 0.1, and INP in the “good” range — these are explained in the Web Vitals guidance (Web Vitals).

Concrete, high-impact fixes to try first:

  • Improve server response and caching (reduce TTFB, enable CDN and HTTP compression).
  • Optimize images (proper sizing, compression, next-gen formats, responsive srcsets).
  • Defer or async noncritical JavaScript and split bundles to shrink main-thread work.
  • Inline critical CSS and postpone noncritical CSS to reduce render-blocking.
  • Use font-display fallbacks to avoid invisible text and reduce CLS.
  • Audit third-party scripts and remove or lazy-load those that block rendering.

For debugging, run Lighthouse in Chrome DevTools for trace-level timing and waterfalls, and use WebPageTest for multi-location, filmstrip-style runs (Lighthouse, Chrome DevTools Performance, WebPageTest). Note that PageSpeed scores are diagnostic; field metrics matter more for SEO and user experience. As several members here noted (for example and ), the tool surfaces useful issues, but fixes should be validated across devices and monitored over time (see Google page-experience docs for how these signals fit search ranking) (Page Experience).

Member Avatar for RoseMary3

this is google own tool must be good

Member Avatar for aumkiiweb

I tested my site and this tool is very useful. Thanks for sharing.

Member Avatar for NETProgrammer

Review: Quite a good tool to check errors on your websites. Gives link problems, title etc.
Overall a good seo tool.

Thanks OP for sharing.

Member Avatar for liveindiantv

This is a great tool . thanks for sharing

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