Port Scanner

Scan several ports of a host at once and see which ones answer. Only scan hosts you own or manage.

About this service

About the port scanner

Tries many ports of one host in parallel and lists which accept a connection. Use it to see which of your own services are exposed, or to find which tunnel port a server really listens on.

  • Transport. TCP connect scan, at most 30 ports per run, limited to a few runs per minute.
  • Apps. Pick a preset list or type your own ports and ranges.
  • Good to know. No response usually means a firewall is dropping the traffic. Only scan hosts you own or have permission to test.