SEO
Performance
Core Web Vitals
Core Web Vitals Explained — LCP, CLS, and INP
Google uses Core Web Vitals as a ranking factor. LCP, CLS, and INP measure real user experience. Learn what causes poor scores and how to fix them.
Dev Utilities Team
••1 min read
LCP — Largest Contentful Paint
Measures how long it takes the largest visible element to render. Good: under 2.5s. Fix: serve images in WebP, preload hero images, improve server response time.
CLS — Cumulative Layout Shift
Measures unexpected layout shifts during loading. Good: under 0.1. Fix: always set width and height on images and iframes; reserve space for ads.
INP — Interaction to Next Paint
Measures latency of click/tap/keyboard interactions. Good: under 200ms. Fix: break long JavaScript tasks, reduce DOM size, defer non-critical scripts.
Convert images to WebP with our WebP Converter.
Try These Free Tools
Explore more in this category
Browse SEO Tools →