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Interaction to Next Paint (INP)

Interaction to Next Paint measures the responsiveness of a webpage by tracking the time from when a user interacts with the page to when the browser can present the next frame showing the results of that interaction.

Why Interaction to Next Paint (INP) Matters

INP replaced First Input Delay as a Core Web Vital in March 2024, providing a more comprehensive measure of page responsiveness throughout the entire user session, with scores under 200ms considered good.