Build Assets
Checklist
Core Web Vitals
LCP, FID/INP, and CLS scores meet Google's "Good" threshold before launch.
Platform: webTags: performance, core-web-vitals, lcp, cls, lighthouse
Check
LCP < 2.5s, INP < 200ms, CLS < 0.1. Run Lighthouse in Chrome DevTools on the 3 most-visited pages. Test on throttled mobile (Moto G4 preset). All three scores in "Good" range.
Why This Matters
Core Web Vitals directly affect Google search ranking and user experience. LCP measures loading speed (largest element visible), INP measures interactivity, CLS measures layout stability. Poor scores lose both rankings and users.
Category
Performance
Priority
important
How to Verify
Run Lighthouse on homepage, primary content page, and checkout/conversion page. Screenshot results. Fix any "Poor" scores before launch. Re-test after fixes.