Observability for Application Deployments by Pepijn Sanders | React Universe Meetup, July 2025 @CallstackEngineers
Observability for Application Deployments by Pepijn Sanders | React Universe Meetup, July 2025  @CallstackEngineers
Uploaded July 2025 | Updated September 2026, 11 hours ago
Ever hear “the app is slow” and struggle to find out *why*?

In this talk, Pepijn Sanders breaks down how observability can help you debug application performance, end to end. From global latency differences to hydration delays and multi-service bottlenecks, Pepijn explains the real-world deployment challenges HelloFresh faced and how observability helped solve them.

You’ll learn how to:
- Measure and reduce latency across global regions
- Track down slow rendering, API timeouts, and client-server delays
- Optimize performance through strategic caching and co-location

Let's build scalable observability for your product 🤝 clstk.com/4lGYEY5
Check out more observability insights 📈 clstk.com/4lKfi9g
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Observability for Application Deployments by Pepijn Sanders | React Universe Meetup, July 2025

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