Official statement
Google Search exclusively utilizes field data sourced from real users through CrUX (Chrome User Experience Report) to evaluate CLS. Lab data is beneficial for development purposes but is not considered for ranking.
Other statements from this video 12 ▾
- □ Why is CLS critical for your SEO strategy?
- □ Why is CLS essential for your site's visual stability and SEO success?
- □ How can you optimize your CLS score for better SEO results?
- □ Why does it take a month for CrUX data to stabilize in the Search Console?
- □ Why is specifying image dimensions crucial for technical SEO?
- □ How does reserving space for iframes boost your SEO?
- □ How do empty ad spaces affect your site's SEO?
- □ How can preloading web fonts help reduce CLS?
- □ Should you really avoid 'font-display: swap' to lower your CLS score?
- □ How does 'font-display: optional' influence your SEO?
- □ Why Should You Choose SVGs Over Icon Fonts for SEO?
- □ Do CSS animations really have no impact on your CLS score?
Official statement from
(4 years ago)
⚠ A more recent statement exists on this topic
Why are real user data crucial for your SEO success?
View statement →
TL;DR
Google relies solely on real user data to assess CLS, not lab data. This approach directly influences ranking criteria, driving optimizations based on actual user experience.
❓ Frequently Asked Questions
Les données de laboratoire sont-elles vraiment inutiles ?
Non, elles sont utiles pour le diagnostic initial et les tests de développement.
Comment accéder aux données CrUX de mon site ?
Utilisez l'API CrUX ou les rapports sur la Search Console pour visualiser ces données.
Est-ce que cela signifie que tous les navigateurs sont pris en compte ?
Non, CrUX est basé sur les utilisateurs de Chrome.
🎥 From the same video 12
Other SEO insights extracted from this same Google Search Central video · published on 19/10/2021
🎥 Watch the full video on YouTube →
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