Poor Interaction to Next Paint (INP)

Your page responds slowly to user taps and clicks.

Medium priority · Core Web Vitals

What it is

INP measures how quickly a page visibly responds to user input. Good is under 200ms; above 500ms is poor. It replaces the old FID metric.

Why it matters

INP is now a Core Web Vital. Sluggish interactivity hurts engagement, conversions, and mobile rankings.

How to fix it

Break up long JavaScript tasks, defer third-party scripts, use requestIdleCallback for non-critical work, and optimise event handlers to keep main-thread work minimal.

What our AI checks

Our engine notes pages with poor interaction patterns and prioritises INP fixes in your developer roadmap.

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