CLS measures a page's visual instability caused by shifting elements. It is a dimensionless score, not a loading duration in seconds.[1]
A product image loaded without reserved space may move the purchase button as someone tries to click it. Reserve appropriate space for images and other delayed content. Evaluate real page visits: a static screenshot cannot reveal these shifts.
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Compiled with AI assistance using public sources. General explanation, not individual legal or tax advice. Describing a concept does not mean Zoloo offers it as a feature.