INP replaced FID in Core Web Vitals. Heavy scripts and plugins slow down the page’s response, which frustrates users.
What it means in practice
INP (Interaction to Next Paint) measures how quickly a page responds to user actions – clicking a button, opening the menu or typing in a form. It replaced the earlier FID metric in Core Web Vitals.
Why it matters for your business
When nothing happens for a split second after a click, users click again or give up. A good INP is under 200 milliseconds.
Examples and good practice
- Limit heavy scripts, especially third-party ones.
- Remove unused plugins and widgets.
- Load ad scripts and chats with a delay.
- Test on less powerful phones.
How Novi handles it
Novi websites have lean code and load add-ons (chat, analytics) in a way that doesn’t block interaction, so the site responds quickly on mobile too.
