# WebSockets

> Unlocks the Realtime Hub: holds the open connections that realtime messages need.

## What it unlocks

[Realtime Hub](https://wiki.playquorum.dev/components/ws.md)

## Prerequisites

It is a root of the Infrastructure track. Nothing comes before it.

## Incidents it prevents

- [Reconnect storm](https://wiki.playquorum.dev/incidents/reconnect.md)
- [Launch day](https://wiki.playquorum.dev/incidents/launch-day.md)

## Facts

WebSockets
- **Track:** Infrastructure
- **Era:** [Series A](https://wiki.playquorum.dev/eras/series-a.md)
- **Cost:** 3.75k
- **Requires:** —

## See also

- [Research tree](https://wiki.playquorum.dev/research.md)

Source: https://wiki.playquorum.dev/research/websockets