What is INP by cookie name
INP by cookie name shows how Interaction to Next Paint (INP) varies depending on whether a specific cookie is present in the user session. This lens helps you connect responsiveness performance to segments like logged-in users, A/B test groups, returning visitors, feature flags, or personalized experiences — anything your site marks with a cookie.
Only cookies that were detected during the selected period are shown.
This is especially useful for uncovering hidden responsiveness issues that affect only specific users. A feature might appear to work normally but cause subtle interaction delays for visitors tied to a particular cookie.
Healthy INP by cookie name sample
Should you worry
In a healthy lens, all cookie groups — or the most relevant ones — show INP values in the green. That means no specific audience is experiencing slow or laggy interactions, whether they’re anonymous, logged in, or bucketed into experiments.
If your key user segments respond to interactions quickly, you’re on solid ground.
Unhealthy INP by cookie name sample
When certain cookie groups show noticeably worse INP, it often highlights hidden issues that degrade responsiveness for only part of your audience.
These issues are commonly caused by:
Personalized components triggered by cookies (e.g., user-specific dashboards or modals).
A/B tests or feature flags introducing slow UI variations.
JavaScript execution delays tied to conditional logic based on cookies.
Because these behaviors target specific users, they often escape notice during general testing. INP by cookie name helps you catch and fix them before they drag down real-user experience.
Resolving unhealthy INP by cookie name
Go-to action plan to resolve an unhealthy INP by cookie name:
Ask Uxi to analyze your INP by cookie name values and suggest improvements.
Use Filters to isolate the cookie group with poor responsiveness, then dig into related views (like JS errors or device types).
Simulate INP of the suspected lens to see if fixing it will resolve the INP by cookie name. If yes, this is where the resolution focus should be.
Use an automated INP optimization tool like INProve to improve your INP by cookie name 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.