Speed Insights deprecates First Input Delay on November 1st
Deprecation2 days agoUnverifiedAdded Oct 2, 2026
Speed Insights is deprecating First Input Delay (FID) and will stop recording new measurements on November 1st. Speed Insights already uses Interaction to Next Paint (INP) , the Core Web Vital that replaced FID, as the responsiveness metric in your Real Experience Score .
Topics: Observability, Developer tools
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