Interaction to Next Paint (INP) will replace First Input Delay (FID) as the Core Web Vitals Metric at 12th March 2024
Google is using a 28-day rolling period, INP metric should meet the 200ms threshold to prevent it from impacting your CWV Assessment, before February 13th |
This means that from this date, INP will be used to calculate whether the website passess the Core Web Vitals Assessment.
Interaction to Next Paint (INP) is a pending Core Web Vital metric that assesses a page's overall responsiveness to user interactions by observing the latency of all qualifying interactions that occur throughout the lifespan of a user's visit to a page. The final INP value is the longest interaction observed (sometimes ignoring outliers).
To provide a good user experience, websites should strive to have an Interaction to Next Paint of 200 milliseconds or less. To ensure you're hitting this target for most of your users, a good threshold to measure is the 75th percentile of page loads, segmented across mobile and desktop devices.
Please read the official documentation here: Interaction to Next Paint (INP) and Optimise Interaction to Next Paint
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