---
description: Correlate telemetry for specific Durable Object instances.
title: Filter Durable Object logs and traces by instance ID
image: https://developers.cloudflare.com/changelog/post/2026-07-24-durable-object-instance-observability/og.png?v=02b07c4a5397aa72
---

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July 24, 2026

## Filter Durable Object logs and traces by instance ID

[Workers](https://developers.cloudflare.com/workers/) [Durable Objects](https://developers.cloudflare.com/durable-objects/)

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-07-24-durable-object-instance-observability/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

[Workers Logs](https://developers.cloudflare.com/workers/observability/logs/workers-logs/) and [OpenTelemetry](https://developers.cloudflare.com/observability/export/opentelemetry/) spans for [Durable Object](https://developers.cloudflare.com/durable-objects/) 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`.

![Query Builder filtering traces by Durable Object instance ID](https://developers.cloudflare.com/cdn-cgi/image/onerror=redirect,width=2000,height=666,format=webp/_astro/2026-07-24-durable-object-trace-filter.DW-BwlKL.png)

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

For more information, refer to [Durable Objects metrics and analytics](https://developers.cloudflare.com/durable-objects/observability/metrics-and-analytics/) and [Workers tracing spans and attributes](https://developers.cloudflare.com/workers/observability/traces/spans-and-attributes/).

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