Record and analyze a performance trace with DevTools

Use the Performance panel in DevTools to diagnose performance issues. By recording a trace, you can dive deeper into your website's loading process and runtime behavior, identifying bottlenecks and areas for optimization.

Watch the video to learn how to:

  • How to record a performance trace to investigate Core Web Vitals issues.
  • Navigate and zoom into a portion of the performance trace.
  • Analyze network activities.
  • Use the insights sidebar to focus on the most relevant parts of the trace.
  • Use annotations to collaborate with other developers on fixing performance issues.

For more information, see: