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Page Speed Checklist

Interactive checklist for optimizing page speed

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Optimization categories

  • Images — compression, formats, lazy loading, sizing
  • CSS/JS — minification, bundling, code splitting, tree shaking
  • Server — caching, compression, CDN, HTTP/2
  • Fonts — preloading, subsetting, font-display
  • Core Web Vitals — LCP, FID/INP, CLS optimizations

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