What is INP by session duration
INP by session duration lens breaks down your Interaction to Next Paint (INP) based on how long users spend on your site. It highlights whether responsiveness is consistent across short vs. long sessions.
INP measures how quickly your site responds to user interactions like clicks and taps. Slow responses cause frustration and exit — especially when users are trying to engage.
Healthy INP by session duration sample
Should you worry
Green INP across all durations shows responsiveness is consistent — even as sessions lengthen. That’s a good indicator of well-managed JS execution and interactive UI.
Unhealthy INP by session duration sample
If early durations show poor INP, users may be leaving before they even interact meaningfully. Poor INP in longer sessions could indicate memory leaks, bloated state, or cumulative input delays from unoptimized scripts.
Resolving unhealthy INP by session duration
Go-to action plan to resolve an unhealthy INP by session duration:
Ask Uxi to analyze your INP by session duration values and suggest improvements.
Use Filters to isolate worst durations and traffic segments.
Simulate INP of the suspected lens to see if fixing it will resolve the INP by session duration. If yes, this is where the resolution focus should be.
Use an automated INP optimization tool like INProve to improve your INP by session duration values.
Once you’ve improved INP, set an alert to be the first to know if it starts worsening again.
Try it yourself
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