Exploring Google’s New Speed Metric Interaction To Next Paint (INP)

Revolutionizing Web Performance with INP

Introduction

In the realm of web performance, responsiveness and speed are paramount. Recognizing this, Google introduced a new Core Web Vital metric known as Interaction to Next Paint (INP), which is set to replace First Input Delay (FID) in 2024. This transition marks a significant advancement in how website responsiveness is measured and optimized.

Understanding Interaction To Next Paint (INP)

INP is designed to provide a more comprehensive measure of a webpage’s responsiveness to user inputs, such as clicks, taps, and keyboard events. Unlike FID, which only measures the delay before the browser can begin processing the first user input on a page, INP accounts for the entire duration of processing and rendering the response to each user interaction. This metric reflects the delays experienced by users more accurately, encompassing input delay, processing delay, and the crucial rendering delay, thus offering a holistic view of the user experience.

Why The Shift From FID To INP?

Google’s initiative to replace FID with INP stems from the latter’s broader and more accurate…