Category: Technical SEO

CLS

Unexpected shifts in page layout.

CLS (Cumulative Layout Shift) measures visual stability — how much elements "jump" during loading. A high CLS is annoying and leads to accidental clicks. A good score is under 0.1; reserving space for images and ads helps.

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🔗 Related terms

C

Core Web Vitals

A set of page-loading quality metrics.

L

LCP

Time to render the largest content element.

L

Lazy loading

Loading images only as the user scrolls.

R

robots.txt

A file controlling bot access to the site.

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