Official statement
Iframes and embeds (ads, videos, widgets) must have explicit heights and widths set on their parent element to reserve the necessary space and avoid layout shifts that impact CLS.
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 Google prioritize real user data for CLS?
- □ 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 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
Does specifying image dimensions really fix Cumulative Layout Shift?
View statement →
TL;DR
Specifying explicit heights and widths for iframes and ad content reduces CLS, thereby enhancing user experience. It's a crucial lever for optimizing your Core Web Vitals.
❓ Frequently Asked Questions
Qu'est-ce que le CLS ?
Le Cumulative Layout Shift (CLS) est une mesure de la stabilité visuelle qui évalue les décalages de mise en page pendant le chargement.
Comment influencer mon CLS ?
Réservez de l'espace pour les iframes et contenus intégrés, et éviter les styles dynamiques non prévisibles.
L'amélioration du CLS suffira-t-elle à améliorer mon SEO ?
Pas uniquement. C'est l'une des mesures des Core Web Vitals, qui, combinées à d'autres facteurs, améliorent l'expérience utilisateur et le SEO.
🎥 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 →
💬 Comments (0)
Be the first to comment.