FID Is Dead. What INP Means for Your React App.

📰 Dev.to · nosyos

Learn how Interaction to Next Paint (INP) replaces First Input Delay (FID) in React apps and why it matters for user experience

intermediate Published 5 May 2026
Action Steps
  1. Replace FID with INP in your React app's performance metrics
  2. Use the Web Vitals library to measure INP
  3. Configure your app to prioritize user interaction and minimize delays
  4. Test your app's INP score using tools like Lighthouse or WebPageTest
  5. Optimize your app's code to improve INP scores and enhance user experience
Who Needs to Know This

React developers and UX designers benefit from understanding INP to optimize app performance and improve user interaction

Key Insight

💡 INP measures the time between user interaction and the next paint, providing a more accurate metric for user experience

Share This
🚨 FID is dead! 🚨 Learn how Interaction to Next Paint (INP) impacts your React app's performance and UX

Key Takeaways

Learn how Interaction to Next Paint (INP) replaces First Input Delay (FID) in React apps and why it matters for user experience

Full Article

In March 2024, Google replaced First Input Delay with Interaction to Next Paint as an official Core...
Read full article → ← Back to Reads

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