SIMPLE. FAST. CLEAR.

Know what’s
open.

Check whether a TCP port is reachable on a host. Get a clear result, response time, and a little more confidence in your troubleshooting.

CONNECTION TEST

Run a port check

HOSTNAME OR IP ADDRESS

PORT NUMBER

COMMON SERVICE

⌄

Only test hosts and networks you own or have permission to assess.

REFERENCE

Tap a port to prefill it