What is INP by hour of the day
INP by hour of the day shows how Interaction to Next Paint (INP) varies throughout different times of the day.
This breakdown helps you identify whether responsiveness issues are tied to peak traffic periods, server strain, or third-party behavior. Since INP measures how long it takes the page to respond to user interactions, tracking it by hour shows if users face more delays at certain times.
INP by hour of the day sample
Should you worry
In a healthy view, INP remains green and consistent across all hours. Small variations may occur due to normal traffic changes, but none that push responsiveness into the yellow or red zones.
A healthy setup typically shows:
INP consistently below 200ms across time ranges.
No spikes during busy hours.
Infrastructure and scripts scaling smoothly with traffic.
If responsiveness stays stable, time of day isn’t impacting interaction quality.
Unhealthy INP by hour of the day
If you see INP values worsen at certain hours, it often indicates that responsiveness suffers under load or during specific background processes.
Common causes include:
Traffic surges increasing main-thread blocking.
Server or API bottlenecks slowing down interaction responses.
Background jobs or batch tasks running at set times, adding delays.
Third-party scripts introducing spikes during business hours.
These time-based delays can make the site feel sluggish and unresponsive depending on when users visit.
Resolving unhealthy INP by hour of the day
Go-to action plan to resolve an unhealthy INP by hour of the day:
Ask Uxi to analyze your INP by hour of the day values and suggest improvements.
Use Filters to isolate problem hours by device, geography, or traffic type.
Simulate INP of the suspected breakdown to see if fixing it will resolve the INP by hour of the day. If yes, this is where the resolution focus should be.
Use an automated INP optimization tool like INProve to improve your INP by hour of the day 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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