Optimize largest contentful paint

LCP is the most important Core Web Vital for perceived load speed—it measures when the main content becomes visible, directly impacting user perception and SEO rankings.

Quick Reference

• LCP measures when the largest element renders—target under 2.5s
• Use preload for hero images and critical resources
• Optimize image formats and use responsive sizes
• Reduce server response time (TTFB)

Check

Measure LCP using Lighthouse or PageSpeed Insights. Verify the largest visible element renders within 2.5 seconds.

Fix

Optimize LCP by preloading critical resources, optimizing images, using CDN, and reducing server response time.