# SignalR Scalability: Scaling Real-Time SignalR Applications on Heroku

DevFeed: [SignalR Scalability: Scaling Real-Time SignalR Applications on Heroku](<https://devfeed.tech/articles/signalr-scalability-scaling-real-time-signalr-applications-on-heroku-26492.md>)

Original publisher: [Read original article](<https://www.heroku.com/blog/scaling-real-time-signalr-applications-on-heroku/>)

Author: Andrew Fawcett

Published: 2025-05-21T16:26:16Z

Content type: tutorial

Language: en

Sources: [Heroku](<https://devfeed.tech/sources/heroku.md>)

Topics: [SignalR](<https://devfeed.tech/topics/signalr.md>), [Scalability](<https://devfeed.tech/topics/scalability.md>), [Heroku](<https://devfeed.tech/topics/heroku.md>), [Redis](<https://devfeed.tech/topics/redis.md>), [.NET](<https://devfeed.tech/topics/net.md>), [WebSocket](<https://devfeed.tech/topics/websocket.md>)

Tags: [developer-tools](<https://devfeed.tech/tags/developer-tools.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [guide](<https://devfeed.tech/tags/guide.md>), [heroku](<https://devfeed.tech/tags/heroku.md>), [net](<https://devfeed.tech/tags/net.md>), [performance-optimization](<https://devfeed.tech/tags/performance-optimization.md>), [redis](<https://devfeed.tech/tags/redis.md>), [scalability](<https://devfeed.tech/tags/scalability.md>), [signalr](<https://devfeed.tech/tags/signalr.md>), [sticky-sessions](<https://devfeed.tech/tags/sticky-sessions.md>), [websocket](<https://devfeed.tech/tags/websocket.md>)

## AI overview

A Heroku tutorial explains how to scale a real-time .NET SignalR application across multiple servers or dynos. It covers using a Redis backplane and sticky sessions to maintain stable WebSocket connections.

## Source excerpt

SignalR makes it easy to add real-time functionality to .NET web applications--things like live chat, instant notifications, or interactive dashboards. But what happens when your app starts to grow? A single server can only take you so far. At some point, you'll need to take advantage of SignalR scaling features to scale out your app. [...] The post SignalR Scalability: Scaling Real-Time SignalR Applications on Heroku appeared first on Heroku.