Announcing Workers automatic tracing -- now in open beta
Oct 28, 2025Nevi Shah, Boris Tane, Jeremy Morrell

Summary
This post introduces automatic tracing for Cloudflare Workers, available in open beta. It enables automatic instrumentation of I/O operations (binding calls, fetch calls, handler calls) within Workers, capturing OpenTelemetry-compliant spans with automatic attributes. Traces can be viewed in the Cloudflare dashboard or exported to OTLP providers. This expands the existing observability platform by adding a crucial layer for debugging and performance analysis of serverless applications.