---
description: Cloudflare Queues metrics now include realtime backlog size (in count & bytes) and oldest message timestamp
title: Realtime backlog metrics now available for Queues
image: https://developers.cloudflare.com/changelog/post/2026-04-28-improved-queues-metrics/og.png?v=041711224ffeddd8
---

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April 28, 2026

## Realtime backlog metrics now available for Queues

[Queues](https://developers.cloudflare.com/queues/)

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-04-28-improved-queues-metrics/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

[Queues](https://developers.cloudflare.com/queues/), Cloudflare's managed message queue, now exposes realtime backlog metrics via the dashboard, REST API, and JavaScript API. Three new fields are available:

- **`backlog_count`** — the number of unacknowledged messages in the queue
- **`backlog_bytes`** — the total size of those messages in bytes
- **`oldest_message_timestamp_ms`** — the timestamp of the oldest unacknowledged message

The following endpoints also now include a `metadata.metrics` object on the result field after successful message consumption:

- `/accounts/{account_id}/queues/{queue_id}/messages/pull`
- `/accounts/{account_id}/queues/{queue_id}/messages`
- `/accounts/{account_id}/queues/{queue_id}/messages/batch`

#### Javascript APIs

Call `env.QUEUE.metrics()` to get realtime backlog metrics:

```ts
const {
	backlogCount, // number
	backlogBytes, // number
	oldestMessageTimestamp, // Date | undefined
} = await env.QUEUE.metrics();
```

`env.QUEUE.send()` and `env.QUEUE.sendBatch()` also now return a metrics object on the response.

You can also query these fields via the [GraphQL Analytics API](https://developers.cloudflare.com/analytics/graphql-api/) or view realtime backlog on the [dashboard ↗︎](https://dash.cloudflare.com/?to=/:account/workers/queues).

![Queues realtime backlog](https://developers.cloudflare.com/cdn-cgi/image/onerror=redirect,width=1402,height=494,format=webp/_astro/2026-04-28-queues-metrics.BYi0hgrD.png)

For more information, refer to [Queues metrics](https://developers.cloudflare.com/queues/observability/metrics/).

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