Does A2 Hosting support the WebSocket API?

The WebSocket API (application programming interface) is a protocol that provides two-way communication between a browser and a server over a single TCP socket. This enables web applications to be responsive in real-time, without the need to poll a server for new information.

A2 supports WebSockets on the following hosting packages:

  • Managed VPS and Dedicated servers: If you want to run WebSockets on these hosting packages, please open a support ticket on the A2 Hosting Customer Portal at and we will set up the server for you. In the ticket, please provide the following information:
    • The domain or URL you want proxied for the WebSocket application.
    • The port number on which you want WebSockets to run.
  • Unmanaged VPS and Dedicated servers: These hosting packages provide you with root access and complete control over the operating environment.
A2 does not support WebSockets on shared or reseller hosting packages at this time.

More Information

For more information about the WebSocket API, please visit

Get WebSocket Hosting

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