Interaction to Next Paint (INP) is a metric that reports one of the longest delays between user interaction and the browser response throughout the entire page lifecycle. INP is a Core Web Vital metric.
The quickest and easiest way to see Interaction to Next Paint performance for your site is to use our free Core Web Vitals test tool, or use the form below.
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:
Pages with Interaction to Next Paint lower or equal than 200ms are considered as fast, and above 500ms are considered slow.