Introducing INP for Core Web Vitals, FID to Go Away

TL;DR

Why is Google replacing FID with INP for Core Web Vitals?

Core Definition: The replacement of First Input Delay (FID) with Interaction to Next Paint (INP) is an update to Google's Core Web Vitals, effective March 2024, designed to provide a more comprehensive measure of a website's responsiveness to user interactions. Unlike FID, which only measures the delay of the first interaction, INP assesses the latency of all user interactions on a page, offering a more accurate reflection of the overall user experience.

Google is evolving its Core Web Vitals to better measure real-world user experience by replacing First Input Delay (FID) with a more robust metric: Interaction to Next Paint (INP). This significant shift requires site owners and developers to refocus their optimization efforts from initial page load responsiveness to the overall interaction latency throughout a user's visit.

Effective March 2024, Interaction to Next Paint (INP) will officially replace First Input Delay (FID) as the Core Web Vitals metric for responsiveness.
INP addresses the limitations of FID by measuring the latency of all user interactions on a page, not just the first one, providing a more holistic view of responsiveness.
Google Search Console will incorporate INP into its Core Web Vitals report to help site owners prepare for the transition before the March 2024 deadline.
While improvements made for FID are a good foundation, site owners must now focus on improving the responsiveness of all page interactions to score well on INP.
Achieving good Core Web Vitals is part of a holistic approach to page experience and does not solely guarantee good rankings.

In early 2020, Google's Chrome Team introduced the Core Web Vitals to provide quality signals for web pages. Today, the Google Chrome team announced an upcoming change in the metrics for the Core Web Vitals better to evaluate the quality of a web page's user experience. This article explores this change and its meaning for Google Search and site owners.

A better responsiveness metric

One of the Core Web Vitals metrics, First Input Delay (FID), measures responsiveness, but FID has known limitations. 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.

SERVICE B2B Inbound Marketing Services: Generate Predictable Sales Pipeline

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.

What this means for site owners

If you have been following our guidance to improve Core Web Vitals, you will have considered the responsiveness of your pages already. The improvements made for FID are a good foundation to improve INP and the responsiveness of your pages.

More on Google Search What Makes a Website Feel Credible Within the First Few Seconds

We highly recommend that site owners achieve good Core Web Vitals for success with Search and ensure a great user experience. However, great page experience involves more than Core Web Vitals. Good stats within the Core Web Vitals report in Search Console or third-party Core Web Vitals reports don't guarantee good rankings.

To learn more about how Core Web Vitals fits into a holistic approach to page experience, see our guidance on page experience in Google Search results.

More on Google Search We're Going Dark (For All the Right Reasons)

You can find more information about the new metric in the Chrome team's blog post and guidance on optimizing your pages regarding INP in this guide on optimizing INP.

----------------------Originally Posted by Martin Splitt, Developer Relations Engineer, Google Search Relations team.

Partially edited for clarity; links replaced with information on aspiration.marketing where available. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Core Web Vitals Update: The INP Metric FAQ

Is Google replacing First Input Delay (FID)?

Popular

Yes. Google is officially replacing First Input Delay (FID) with Interaction to Next Paint (INP) as the Core Web Vitals metric for responsiveness, effective March 2024. This change follows extensive testing and community feedback.

Why is INP replacing FID as a Core Web Vital?

Popular

Yes, INP is replacing FID because it more effectively addresses FID's known limitations. The Chrome team developed INP to provide a better, more comprehensive measure of a page's overall responsiveness to user interactions.

What is Interaction to Next Paint (INP)?

Interaction to Next Paint (INP) is a new Core Web Vitals metric measuring a page's overall responsiveness to user interactions. It was introduced to address the known limitations of FID for a more effective evaluation of user experience.

When will INP officially become a Core Web Vital?

INP will officially replace FID and become the new Core Web Vitals metric for responsiveness starting in March 2024. This date was set after a year of testing and gathering feedback from the web development community.

How will Google Search Console adapt to the INP metric?

Google Search Console will include INP in the Core Web Vitals report to help developers prepare. When the change happens in March 2024, the report will stop showing FID metrics and use INP as the new standard for responsiveness.

Will achieving good Core Web Vitals guarantee high rankings?

No. While achieving good Core Web Vitals is highly recommended for success with Search, it does not guarantee high rankings. Google's guidance states that great page experience is holistic and involves more than these metrics.

Written By Joachim

"My dad taught me to dream big and to work my butt off to make those dreams a reality. Building stuff and helping people succeed is what we are about. And if things don't work the first time, we try again differently. Growing bigger is one thing; growing better is what we aim for."

Joachim is a certified HubSpot trainer with over 13 years of experience in content marketing, strategy, website development, and SEO. He has implemented numerous large-scale, international growth marketing programs, including one with UiPath, which grew from a startup to a successful IPO on the NYSE. Joachim has special expertise in multilingual marketing and sales enablement projects, and he uses the latest AI technologies to help our clients.