Observability is the ability to measure the current state of a system. Backend engineers are becoming more familiar with the 3 pillars of observability, and technologies such as OpenTelemetry that can be used to instrument applications and diagnose issues. Yet in the frontend world, we’re behind the curve.

Join me as I dive into the current state of OpenTelemetry for Web and Mobile. I’ll cover a simple example of tracing using OTel web, and the types of metrics and traces we should collect to diagnose performance issues in UIs.

Carly is a Developer Advocate and Manager at Elastic, based in London, UK. Before joining Elastic in 2022, she spent over 10 years as a technologist at a large investment bank, specialising in