Technical SEO
Cumulative Layout Shift (CLS)
A Core Web Vital measuring how much visual content shifts on a page as it loads.
CurrentLast updated: 2026-09-16
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Definition
Technical SEOCumulative Layout Shift (CLS) measures the visual stability of a page by quantifying how much content shifts during loading. Common causes include images without dimensions, ads, and dynamically injected content. A good CLS score is 0.1 or less.
clscore-web-vitalslayout
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