Introducing INP to Core Web Vitals

Wednesday, May 10, 2023

In early 2020, Google's Chrome Team introduced the Core Web Vitals to provide a suite of quality signals for web pages. Today, the Google Chrome team announced an upcoming change in the metrics for the Core Web Vitals to better evaluate the quality of a webpage's user experience. In this article, we'll explore this change and what it means for Google Search and site owners.

A better responsiveness metric

The INP metric transitioned from being an experimental metric in May 2022 to the announcement today and will become a stable metric as part of the Core Web Vitals in May 2024.

One of the Core Web Vitals metrics, First Input Delay (FID), measures responsiveness, but there are known limitations of FID. This led the Chrome team to explore and seek feedback on a (then) experimental metric that addresses these limitations more effectively. In 2022, they announced Interaction to Next Paint (INP) as that new metric and started working with the community to test its efficacy.

After another year of testing and gathering feedback from the community, the Chrome team decided to promote INP as the new Core Web Vitals metric for responsiveness, effective March 2024, replacing FID. The Chrome team's blog post explains this change and the reasoning behind the new metric in more detail.

What this means for Google Search Console

The new metric, INP, will replace FID as part of the Core Web Vitals in March 2024. To help site owners and developers to take the necessary steps and evaluate their pages for the new metric, Search Console will include INP in the Core Web Vitals report later this year. When INP replaces FID in March 2024, the Search Console report will stop showing FID metrics and use INP as the new metric for responsiveness.