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First Input Delay (FID) and Total Blocking Time (TBT) Explained

Alongside Largest Contentful Paint (LCP) and Cumulative Layout Shift (CLS), First Input Delay is one of the three core web vitals Google is emphasizing in its Page Experience Update rolled out in Summer 2021.

Alongside Largest Contentful Paint (LCP) and Cumulative Layout Shift (CLS), First Input Delay is one of the three core web vitals Google is emphasizing in its Page Experience Update rolled out in Summer 2021.Read MoreTechnical SEOSemrush blog

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