Interaction to Next Paint is a Core Web Vitals metric that measures how quickly a page responds visually after user interactions.
Example of Interaction to Next Paint
A filter button may appear unresponsive while a long script blocks the browser from updating the screen. INP helps assess that interaction delay across a visit, so testing only the initial page load misses part of the experience.
Why Interaction to Next Paint matters
It matters because technical issues can prevent great content from being discovered, rendered, indexed, or trusted. Strong technical foundations protect rankings during redesigns, migrations, content expansion, and platform changes.
Related terms
Frequently Asked Question
What does Interaction to Next Paint mean?
Interaction to Next Paint means a Core Web Vitals metric that measures how quickly a page responds visually after user interactions.