Fanout – Reverse proxy to push real-time data to connected devices

In plain words

Fanout is a reverse proxy that delivers real-time data to connected devices using WebSockets and pub/sub messaging at the edge. Built on Fastly's infrastructure, it handles connection management, protocol translation, and bi-directional communication for applications like chat, live auctions, and IoT systems. The service reduces origin server load and enables low-latency real-time experiences without requiring users to build complex infrastructure themselves.

written from the facts on this page · September 2026

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  Fanout2015 · fastly.com · ▲98

  Your API stack. Now with realtime push.

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  Pushpin, a reverse proxy for real-time web services2016 · github.com · ▲49

  A proxy server for adding push to your API, used at the core of Fastly's Fanout service - fastly/pushpin

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  Fanout2017 · fastly.com · ▲13

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  Pushpin – A new way to build realtime HTTP and WebSocket services2015 · pushpin.org · ▲114

  Reverse proxy for realtime APIs.

• SR
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