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July 24, 2026 · Cloudflare

Workers, Durable Objects - Filter Durable Object logs and traces by instance ID

Workers Logs and OpenTelemetry spans for Durable Object requests include the Durable Object instance ID.

Use $workers.durableObjectId to filter logs for a specific instance. Root and child spans include the same ID in cloudflare.durable_object.id.

Use these fields to isolate a specific instance and correlate its logs and traces.

For more information, refer to Durable Objects metrics and analytics and Workers tracing spans and attributes.