What is Core Web Vitals?
TL;DR
Core Web Vitals are Google's set of metrics for measuring user experience on a website: Largest Contentful Paint (loading speed), Interaction to Next Paint (interactivity), and Cumulative Layout Shift (visual stability)..
Definition
Core Web Vitals are Google's set of metrics for measuring user experience on a website: Largest Contentful Paint (loading speed), Interaction to Next Paint (interactivity), and Cumulative Layout Shift (visual stability).
Why It Matters
Core Web Vitals are a confirmed Google ranking factor. Fast, stable, responsive websites provide better user experiences and rank higher. AI systems also favor fast, well-structured sites for retrieval.
Examples
- LCP under 2.5 seconds: main content loads quickly
- CLS under 0.1: page elements don't shift as it loads, preventing accidental clicks
Frequently Asked Questions
What are good Core Web Vitals scores?
LCP (Largest Contentful Paint) should be under 2.5 seconds, INP (Interaction to Next Paint) under 200 milliseconds, and CLS (Cumulative Layout Shift) under 0.1. These thresholds represent a 'good' user experience.
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