juniorWebSockets
What is a WebSocket URL (ws:// vs wss://)?
Updated May 6, 2026
Short answer
ws:// is unencrypted WebSocket; wss:// is secure WebSocket over TLS.
Deep explanation
wss:// is equivalent to HTTPS and should be used in production to ensure encrypted communication.
Real-world example
Banking apps using secure WebSocket connections.
Common mistakes
- Using ws:// in production environments.
Follow-up questions
- Is wss mandatory in production?