Google has introduced Core Web Vitals as a standardized set of metrics to help developers optimize their web applications' user experience. However, these vitals can be challenging to implement with single-page applications (SPAs), particularly the Interaction to Next Paint (INP) metric, which measures responsiveness. Datadog provides several features that enable developers to monitor Core Web Vitals for SPAs, including INP, and contextualize their insights with historical information, RUM metrics, and other performance data. By using these features, developers can gain end-to-end visibility into their app's interactivity and identify critical issues before they impact users. Additionally, Datadog offers a 14-day free trial for new users to start monitoring INP within its RUM toolset.