Monitoring Core Web Vitals & Runtime Health
Production monitoring should cover both technical errors and user experience. Track JavaScript errors, route failures, API failures, interaction latency, and appropriate web performance metrics.
A local machine may hide problems caused by slow networks, low-end devices, or large geographic latency. Real-user monitoring can reveal those differences.
Set useful thresholds and alert on meaningful regressions rather than every small fluctuation.
Key Takeaways
- Measure real-user experience, not only local development performance.
- Correlate UI failures with API and deployment changes.
- Alert on actionable regressions.