To effectively identify INP (Interaction to Next Paint) issues, several tools can be utilized, each offering distinct advantages for web performance analysis. Google’s Lighthouse, a robust tool integrated into Chrome DevTools, provides a comprehensive report on performance metrics, including INP. It aids developers in understanding how a page responds to user interaction, offering insights that can help in diagnosing delayed interactions and suggesting improvements.

Additionally, Google Search Console offers specific reports concerning INP under Core Web Vitals, allowing webmasters to monitor and enhance user experience directly from Google’s search performance reporting tools. This is particularly beneficial when monitoring a website’s performance across broader metrics, including those affecting search rankings.

WebPageTest is another powerful option, known for its advanced testing capabilities. It provides a deep dive into INP along with other metrics, allowing users to run detailed tests and analyze performance from multiple geographies, browsers, and devices. Its customizable nature and detailed insights into loading behaviors make it an excellent choice for diagnosing INP issues.

Finally, the Chrome User Experience Report (CrUX), which collects real-world user data via the Chrome browser, offers valuable insights into INP as experienced by real users. This tool is particularly useful for understanding how actual users experience a website, leading to more user-focused optimization strategies.

By leveraging these tools, developers can effectively pinpoint and address INP issues, thereby enhancing user interaction and satisfaction.