The three measures
| Measure | What it means | Good |
|---|---|---|
| Largest Contentful Paint (LCP) | How long until the main content shows | 2.5 seconds or less |
| Interaction to Next Paint (INP) | How fast the page responds to taps and clicks | 200 milliseconds or less |
| Cumulative Layout Shift (CLS) | How much the page jumps while loading | 0.1 or less |
INP replaced First Input Delay (FID) as a Core Web Vital in March 2024.
How to check
Put your address into PageSpeed Insights (pagespeed.web.dev). The top section shows real-user data if Google has enough visits; the lab test below is a simulation.
Common fixes
- Slow LCP: compress the main image, improve hosting, remove render-blocking scripts.
- Poor INP: cut heavy scripts, chat widgets and trackers.
- High CLS: set image sizes, reserve space for banners and ads.
Need help? See speed optimization.
