While the metric definitions have been tweaked over time, the introduction of the Interaction to Next Paint metric is the biggest change since the launch of the Core Web Vitals initiative. Interaction to Next Paint is a metric that evaluates how quickly your website responds to user interaction. Google has announced that Interaction to Next Paint will become one of the three Core Web Vitals metrics in March 2024. ConclusionThe Interaction to Next Paint metric represents the biggest change to Google’s Core Web Vitals since they were originally announced. Check how your website does on the Interaction to Next Paint metric before the ranking change is rolled out in 2024.