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Core Web Vitals

Measure your page's Core Web Vitals — LCP, CLS, and INP — the real-world performance metrics Google uses to rank your site in search results.

What is Core Web Vitals?

Core Web Vitals are a set of performance metrics defined by Google to measure real-world user experience on a webpage. They focus on loading performance (Largest Contentful Paint), interactivity (Interaction to Next Paint), and visual stability (Cumulative Layout Shift). These metrics directly impact SEO rankings and overall user satisfaction.

How to Fix It

Optimize images and use modern formats like WebP, reduce JavaScript execution time, enable lazy loading, and improve server response times. Minimizing layout shifts and ensuring fast interaction readiness will significantly boost your Core Web Vitals scores.

Best Practices

  • Keep Largest Contentful Paint (LCP) under 2.5 seconds.
  • Ensure Interaction to Next Paint (INP) is under 200 milliseconds.
  • Maintain Cumulative Layout Shift (CLS) below 0.1.
  • Use a CDN to reduce server response time.
  • Minimize unused JavaScript and CSS.
  • Optimize fonts and preload important resources.