REAL-TIME CONNECTION DIAGNOSTIC

WebSocket connection test

Check whether your browser can open a secure, two-way connection for chat, live dashboards, games and other real-time apps.

Your browser

WebSocket connectionPing (client → server)Pong (server → client)

Test server

Ready to test your connection

Start the test to verify real-time connectivity.

The test runs for 10 seconds and closes the connection automatically.

Live message log

0 events

Messages will appear here when the test starts.

This checks the Postman echo endpoint. Message replies include server processing and do not measure IP packet loss or guarantee that another application works.

What should you try next?

Interpret this endpoint test without assuming the cause
Result	Meaning	Next check
Connection fails	The endpoint, DNS, browser or network path may be unavailable.	Retry later and compare another browser or connection.
Connected, but replies are missing	The application did not receive every echo before the test ended.	Repeat and check the affected application. This is not a packet-loss percentage.
All messages return	This browser exchanged messages with this echo server.	If another app fails, investigate its own endpoint and service status.

For wider problems, check DNS responses or follow the slow-connection guide. A managed firewall or VPN can affect connections, but a failed test alone does not prove it.