Perform browser-based performance audits

Static analysis alone cannot simulate the complex rendering, script execution, and layout processes of modern web browsers, which is essential for capturing real-world performance.

Quick Reference

• Use real browser engines to capture runtime metrics (LCP, CLS, INP)
• Synthetic tests in full browsers reveal execution bottlenecks
• Verify performance across different device and connection simulations

Check

Ensure that performance audits are conducted in an environment that executes JavaScript and renders the page (e.g., Lighthouse, Puppeteer).

Fix

Integrate browser-based testing tools like Lighthouse or WebPageTest into the development workflow and CI/CD pipeline.

Explain