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PageSpeed Insights analyzer showing Core Web Vitals and performance scores. Free, instant, no account needed. Page Speed Checker -- One-Click PageSpeed Insights & Core Web Vitals Check any page performance score and Core Web Vitals instantly. Uses Google PageSpeed Insights API to give you real performance data. FEATURES: - One-click performance analysis of the current page - Google PageSpeed Insights scores (Performance, Accessibility, Best Practices, SEO) - Core Web Vitals: LCP, FID/INP, CLS - Mobile and Desktop results - Clean, easy-to-read dashboard - No API key required -- uses Google free public API HOW IT WORKS: 1. Navigate to any webpage 2. Click the extension icon 3. View performance scores and Core Web Vitals instantly PRIVACY: The URL of the current page is sent to Google PageSpeed Insights API for analysis. No other data is collected or stored by the developer. Essential for web developers, SEO professionals, and site owners who need quick performance checks.