Shared hosting environments are designed for:

• PHP + MySQL

• Apache or LiteSpeed

• One server shared by hundreds or thousands of customer accounts

• Processes that start and end quickly

Node.js + WebSockets are the opposite.

They require:

• Long-running processes

• Persistent CPU + Memory usage

• Open ports

• Ability to bind to custom ports

• Custom routing rules

This breaks the shared hosting model.

1) WebSockets require always-running background processes

A WebSocket server stays open 24/7 and consumes resources.
Shared hosting environments automatically kill long-running processes to prevent abuse.

So hosting companies avoid Node/WebSockets to prevent:

• One user hogging CPU

• Memory leaks bringing entire shared server down

• Application loops or runaway processes

2) Node.js needs network ports that shared hosting cannot safely expose

For WebSockets, your script wants to listen on:

http://yourdomain.com:3001

ws://yourdomain.com:8080

On shared hosting:

• Ports are shared

• Each customer cannot bind to their own port safely

Otherwise one user could:

• Hijack traffic

• Sniff traffic

• DDOS others

3) Process Managers Aren’t Scalable in Shared Environments

To run Node apps, you need:

• PM2

• or systemd

• or Supervisor

But those give persistent control over CPU usage.

Shared hosting is built to:

• Spawn processes only when requested by HTTP

• Kill them after the request ends

WebSockets break this rule.

4) Fair Usage vs. Unlimited Plans

Shared hosting plans are marketed as:

• Unlimited domains

• Unlimited bandwidth

• Unlimited CPU

This only works because the apps are short-lived.

A single Node.js real-time app can:

• Hammer CPU

• Hold memory indefinitely

• Create 1000+ simultaneous open WebSocket connections

This would destroy “unlimited hosting” pricing instantly.

5) Security Isolation

Node apps can:

• Execute arbitrary JS code

• Open outbound network connections

• Listen on inbound ports

This drastically increases:

• Malware risk

• Crypto miner abuse

• Botnet hosting

Shared hosts purposely choose server-side PHP only because:

• It is sandboxed

• It scales extremely easily

• It is stateless request-based traffic

So What’s the Alternative?

For Node.js + WebSockets choose:

✅ VPS (minimum 1–2GB RAM)
✅ Docker hosting
✅ Dedicated hosting

Simplest Low-Cost Setup for WebSockets

A VPS like our VPS CX22 (2 vCPU / 4 GB RAM)

And it scales.

Bottom Line