Interaction to Next Paint (INP) is an experimental metric that reports one of the longest delays between user interaction and the browser response throughout the entire page lifecycle.
For Interaction to Next Paint calculation, interaction can be one of the following events:
An interaction might also consist of multiple events composed of three phases: the input delay, the processing time, and the presentation delay. INP will be calculated as the visitor leaves the page.
Interaction to Next Paint represents the page’s overall latency and will also vary depending on how interactive a page (e.g. a reasonably static website versus a highly interactive application) is:
|Good INP Measurement||Poor INP Measurement|
|≤ 200ms||> 500ms|