What is INP by connection type
INP by connection type shows the Interaction to Next Paint (INP) values based on the user’s estimated network conditions at the time of the interaction. This lens helps you understand how connection quality affects responsiveness.
This isn’t about whether the user is on Wi-Fi or mobile — it’s based on the effective connection type reported by the browser, which reflects real download speeds and latency.
Reported type | What it actually means |
5G | Very fast and low latency — often strong Wi-Fi, Ethernet, or 5G |
4G | Good performance — typical for stable Wi-Fi or solid mobile data |
3G | Moderate speed — may include higher latency or slower downloads |
2G | Poor speed — expect noticeable delays, especially for heavy content |
Slow 2G | Very constrained connection — suitable only for lightweight pages or fallback content |
Healthy INP by connection type sample
Should you worry
In a healthy setup, INP should stay green for 4G and 5G — since these are the most common real-world experiences. Slightly worse INP on 3G or 2G is expected, but still shouldn’t slip into red.
Unhealthy INP by connection type sample
If you’re seeing bad INP on fast connections like 5G or 4G, that’s a red flag. These users aren’t struggling because of the network — it’s likely caused by:
Too much JavaScript delaying the main thread
Expensive event handlers or long tasks
Lazy hydration causing interaction delays
Render delays due to layout shifts or DOM complexity
Resolving unhealthy INP by connection type
Go-to action plan to resolve an unhealthy INP by connection type:
Ask Uxi to analyze your INP by connection type values and suggest improvements.
Use Filters to drill into the worst connection types, then check other INP lenses
Simulate INP of the suspected lens to see if fixing it will resolve the INP by connection type. If yes, this is where the resolution focus should be.
Use an automated INP optimization tool like INProve to improve your INP by connection type 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.