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What are Core Web Vitals ?

The concept of Core Web Vitals

The Core Web Vitals (CWV) were developed by Google and represent a trio of measures of user experience. They are designed to help encourage a more accessible, faster and better navigation experience.

To do this, Google takes into account three basic parameters. The first is the largest graphic content (LCP or Largest Content Paint). It measures the loading time of the largest item on the page, and represents a measure of the execution speed.

The second measure is the First Input Delay (FID). This takes into account the delay before a user can interact with your site for the first time. This is therefore an indication of the reactivity of the site.

Finally, the third indicator is the Cumulative Layout Shift (CLS). This is a measure of the stability of a web page’s graphical display. The CLS takes into account animations, transparent display and dynamic pop-ups.

Together, these three measures are used by Google to assess the quality of websites. The Core Web Vitals are therefore basic SEO elements. Google openly encourages sites to focus on these important factors.

Each of the three parameters included in Core Web Vitals (FCP, FID and CLS) requires its own attention. Your results for each can be measured using various free online tools, including Google Search Console and Google PageSpeed Insights.

Updated on: 22/03/2023

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