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INP
Abbreviation for Interaction to Next Paint
In short and in plain language
INP is a measure for web pages. It shows how fast a page visibly reacts to clicks or key presses.
It looks at the input during a visit. It has replaced an older measure.
A low value means the page reacts smoothly.
Definition
INP is a metric for how quickly a web page visibly responds to input such as clicks or key presses. It takes the interactions during a visit into account and replaced the earlier metric FID. A low value indicates a page that responds smoothly.