Core Web Vitals Checklist

A practical checklist to improve LCP, INP, and CLS so your pages load faster, feel stable, and perform better in search.

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Performance Guide

Core Web Vitals Checklist for Faster, More Stable Pages

Improve page experience and crawl quality by fixing the performance issues that affect LCP, INP, and CLS across your key templates.

LCP (Largest Contentful Paint)

Target <= 2.5s on key page templates

  • Optimize hero/media assets and preload critical resources
  • Reduce server response time and caching misses
  • Remove render-blocking CSS/JS on above-the-fold area

INP (Interaction to Next Paint)

Target <= 200ms for core user interactions

  • Split heavy JavaScript and defer non-critical scripts
  • Minimize third-party script overhead
  • Optimize main-thread tasks and event handlers

CLS (Cumulative Layout Shift)

Target <= 0.1 across major templates

  • Reserve space for images, embeds, and ad containers
  • Avoid late-loading font swaps that move content
  • Stabilize dynamic components during hydration

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