Simon Hearne • 1/19/2021

How to avoid layout shifts caused by web fonts

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This technical article details how web fonts contribute to Cumulative Layout Shift (CLS), a Core Web Vital metric. It explains the cause of layout shifts when fonts load and offers practical solutions like font subsetting, using WOFF2 format, variable fonts, preloading critical fonts, and the `font-display: optional` CSS property to minimize CLS and improve user experience.

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#performance #layout shift #core web vitals
How to avoid layout shifts caused by web fonts

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