performance-and-web-vitals
Performance and Web Vitals
Run a Lighthouse Audit
# CLI audit — outputs JSON and HTML report
npx lighthouse https://example.com --output html --output-path ./lighthouse-report.html
# Headless, useful in CI
npx lighthouse https://example.com --chrome-flags="--headless" --output json --output-path ./report.json
# Audit specific categories only
npx lighthouse https://example.com --only-categories=performance,accessibility,seo
Or open Chrome DevTools → Lighthouse tab → Analyse page load.
Target scores: | Category | Target |
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