Port Checker

Check whether a public host accepts a TCP connection on a specified port. Review open, closed or timed-out connections with My Secure Labs.

How to use Port Checker

Enter a public host and a TCP port from 1 to 65535, then complete verification and run the check.

Understanding the results

An open result means a TCP connection was accepted. It does not confirm that the application behind that port is healthy. A timeout can reflect filtering; this check does not test UDP ports.