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Google's Official Page Speed & Core Web Vitals Tool

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PageSpeed Insights measures how quickly your pages load and how smoothly they function for real users. It provides separate scores for mobile and desktop, and crucially combines lab data (simulated tests) with real-world field data from actual Chrome users. Since page speed is a confirmed Google ranking factor, this tool is essential.

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Pros
  • Completely free with unlimited checks
  • Both lab data and real-world field data
  • Separate mobile and desktop scores
  • Actionable recommendations ranked by impact
  • Official Google tool — no estimation
  • No account or registration required
Cons
  • Single page at a time — no site-wide crawl
  • No competitor analysis
  • No historical tracking
  • Does not diagnose content or keyword issues
  • Can be slow for large pages
Feature Breakdown
FeatureAvailable
Core Web Vitals (LCP, FID, CLS) ✓ Yes
Real-world Chrome user data ✓ Yes
Mobile & desktop scores ✓ Yes
Prioritised fix recommendations ✓ Yes
No signup required ✓ Yes
Unlimited page checks ✓ Yes
Site-wide crawling — No
Competitor comparison — No
Our Verdict

PageSpeed Insights is an essential free tool for anyone working on site performance. Check it before and after making speed improvements — it gives you official Google scores that directly correlate to your search rankings.

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