Core Web Vitals is a set of Google metrics measuring user experience on a page. Since 2021, they are an official ranking factor.
LCP (Largest Contentful Paint) - measures main content loading time. Goal: under 2.5 seconds. Optimize images, use CDN, lazy loading.
INP (Interaction to Next Paint) - replaced FID in 2024. Measures page responsiveness. Goal: under 200ms. Minimize JavaScript, use web workers.
CLS (Cumulative Layout Shift) - measures visual stability. Goal: under 0.1. Always specify image and ad dimensions, avoid dynamically inserted content.
Measurement tools: Google PageSpeed Insights, Lighthouse, Chrome DevTools, Google Search Console. Regularly monitor and optimize these metrics.
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Anna Nowak
CTO & Lead Developer
AI and machine learning specialist with experience in performance optimization.
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