Interaction to Next Paint (INP) in core web vitals
Interaction to Next Paint (INP) is one of the metrics used to measure Core Web Vitals, a set of user-centric performance metrics that evaluate the loading speed, interactivity, and visual stability of web pages. INP specifically focuses on the interactivity aspect. INP measures the time between when a user first interacts with a web page (such as clicking a button or tapping on a link) and when the browser responds by starting to render the next visual update on the screen. It quantifies the delay between user input and the resulting visual feedback. A low INP value indicates a more responsive and interactive web page, as the browser quickly starts rendering the next visual update after user input. On the other hand, a high INP value indicates a longer delay, which can negatively impact user experience and perception of interactivity. INP is important because it helps web developers identify and address issues that may cause delays in the browser's response to user input. By optim...