LCP Optimization Best Practices 2026: The Complete Guide
The 2026 LCP playbook: Priority Hints, Speculation Rules, 103 Early Hints, Lighthouse 13 Insights, View Transitions, AVIF, HTTP/3, and edge streaming SSR.
LCPLargest Contentful Paint CWV
25% weight Good ≤2.5sPoor >4.0s
Unused JavaScript
How to reduce unused JavaScript through code splitting, tree shaking, and dynamic imports to improve your Largest Contentful Paint.
Render-Blocking Resources
How to eliminate render-blocking CSS and JavaScript in the Lighthouse audit. Async/defer scripts, critical CSS extraction, font loading, and Next.js optimizeCss config.