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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