Port Scanner

Check if a remote ⁨TCP⁩ port is open, closed, or filtered.

Learn more

You provide a host and port; the tool attempts a connection from our server.

Useful for validating firewall rules, port forwarding, or service reachability without running a local scanner.

  • Verify firewall rules for a specific host and port.
  • Test port forwarding or ⁨NAT⁩ setup.
  • Confirm that a network service is reachable from the internet.

How it works

  • Enter a hostname or ⁨IP⁩ address and ⁨TCP⁩ port number.
  • The server attempts a ⁨TCP⁩ connection to the target.
  • Connection result is returned: open, closed, or filtered.

Related tools

Example

Input

Output

Feedback