tool

Google PageSpeed Insights

Google PageSpeed Insights is a free web performance analysis tool that evaluates the speed and user experience of web pages on both mobile and desktop devices. It provides actionable recommendations to improve page load times, optimize Core Web Vitals, and enhance overall site performance based on real-world data from the Chrome User Experience Report and lab simulations.

Also known as: PageSpeed Insights, PSI, Google PSI, PageSpeed, Google PageSpeed
🧊Why learn Google PageSpeed Insights?

Developers should use PageSpeed Insights to identify and fix performance bottlenecks that affect user engagement, SEO rankings, and conversion rates, particularly for public-facing websites and applications. It is essential for optimizing Core Web Vitals (LCP, FID, CLS) to meet Google's search ranking criteria and ensure fast, responsive experiences across devices.

Compare Google PageSpeed Insights

Google PageSpeed Insights vs Gtmetrix→Google PageSpeed Insights vs Webpagetest→Google PageSpeed Insights vs Pingdom→

Learning Resources

📄
PageSpeed Insights Documentation
docs
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📝
Web.dev Performance Guide
tutorial
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🎬
Google Developers YouTube: PageSpeed Insights
video
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🎓
Udemy: Web Performance Optimization Course
course
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Related Tools

Core Web VitalsLighthouseWeb Performance OptimizationSeoChrome Devtools

Alternatives to Google PageSpeed Insights

GtmetrixWebpagetestPingdom