What is INP by visitor ID
INP by visitor ID shows anonymized visitor IDs and the Interaction to Next Paint (INP) each one experienced—color-coded to highlight responsiveness issues that persist across visits for the same person.
Interaction to Next Paint (INP) measures how quickly the page visually responds after a user interaction.
Healthy INP by visitor ID sample
Should you worry
A healthy view shows green IDs with snappy feedback on clicks, inputs, and navigations—consistently across first and return visits.
Unhealthy INP by visitor ID sample
When many IDs are yellow/red, those visitors likely face main-thread blocking (heavy JS, sync APIs), slow validations, or network-bound UI updates—sometimes only after login or on specific flows.
Resolving unhealthy INP by visitor ID
Go-to action plan to resolve an unhealthy INP by visitor ID:
Ask Uxi to analyze your INP by visitor ID values and suggest improvements.
Use Filters to separate logged-in vs. guest for the same IDs; identify code paths that regress.
Simulate INP of the suspected breakdown to see if fixing it will resolve the INP by visitor ID. If yes, this is where the resolution focus should be.
Use an automated INP optimization tool like INProve to improve your INP by visitor ID values.
Once you’ve improved INP, set an alert to be the first to know if it starts worsening again.
Try it yourself
Discover how your website performs with real user data.