Page speed
Interaction to Next Paint
INP under 200 ms; critical over 500 ms
What we check
INP under 200 ms; critical over 500 ms
Why it matters
INP is how quickly the page responds when someone taps.
How to fix it
Break up long JavaScript tasks and defer non-essential scripts.
How it affects your score
This check sits in Page speed, which is worth 20% of the overall score. A critical result costs the full weight of the check; a warning costs half. If we can't measure it on your page, we leave it out of the score entirely.