ECOSTA STUDIO

Core Web Vitals

Core Web Vitals are Google's metrics for evaluating a page's user experience — load speed (LCP), interactivity (INP), and visual stability (CLS).

Core Web Vitals is a set of three real-user metrics Google uses to evaluate page experience:

  • LCP (Largest Contentful Paint) — load time of the main element. Target under 2.5 s.
  • INP (Interaction to Next Paint) — response time when the user clicks or types. Target under 200 ms. Replaced FID in 2024.
  • CLS (Cumulative Layout Shift) — visual stability, how much content jumps during load. Target under 0.1.

Measured via PageSpeed Insights, Search Console, or Lighthouse. Affects Google's organic ranking and complements (does not replace) other SEO signals.

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