---
description: Active outbound TCP sockets and outbound WebSocket connections now prevent a Durable Object from being evicted while the connection is open.
title: Outbound connections keep Durable Objects alive
image: https://developers.cloudflare.com/changelog/post/2026-06-19-outbound-connections-keep-dos-alive/og.png?v=3e95175c69a145d0
---

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June 19, 2026

## Outbound connections keep Durable Objects alive

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

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2026-06-19-outbound-connections-keep-dos-alive/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

Durable Objects now remain alive for the duration of active outbound connections created via [`connect()`](https://developers.cloudflare.com/workers/runtime-apis/tcp-sockets/) or an outbound WebSocket. Previously, a Durable Object would be evicted after 70-140 seconds of no incoming traffic, even if the object had an open outbound connection, which is a common pattern when streaming responses from a large language model (LLM) over TCP or an outbound WebSocket.

With this change, each active outbound connection prevents eviction. Once all outbound connections close, the standard 70-140 second inactivity window applies before the Durable Object is evicted.

#### Before: streaming connections were cut off by eviction

![Timeline showing a Durable Object evicted 70-140 seconds after the last incoming request, cutting off an in-flight LLM stream while the outbound connection is still open](https://developers.cloudflare.com/cdn-cgi/image/onerror=redirect,width=820,height=360,format=svg/_astro/outbound-connection-before.jZgN3tY3.svg)

#### After: active outbound connections keep the Durable Object alive

![Timeline showing the same outbound stream completing because the active connection keeps the Durable Object alive, with the inactivity window starting only after the connection closes](https://developers.cloudflare.com/cdn-cgi/image/onerror=redirect,width=820,height=360,format=svg/_astro/outbound-connection-after.CxPT16q0.svg)

If you are [building agents on Cloudflare](https://developers.cloudflare.com/agents/), this is especially relevant. An agent that streams tokens from an LLM while [calling models](https://developers.cloudflare.com/agents/concepts/calling-llms/), or that performs [long-running tasks](https://developers.cloudflare.com/agents/concepts/agentic-patterns/long-running-agents/) over an outbound connection, now stays alive for the duration of that connection instead of being evicted mid-stream.

**Limits:**

- Each outbound connection keeps the Durable Object alive for a maximum of **15 minutes**. After 15 minutes, the connection stops preventing eviction (the connection itself continues operating), and the [standard eviction rules](https://developers.cloudflare.com/durable-objects/concepts/durable-object-lifecycle/) resume.
- The Durable Object's existing [per-account instance limits](https://developers.cloudflare.com/durable-objects/platform/limits/) still apply.

For more information, refer to [Lifecycle of a Durable Object](https://developers.cloudflare.com/durable-objects/concepts/durable-object-lifecycle/).

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