Network diagnostics

Port checker

Test one TCP port on a public hostname or IP address from the IPGetter server.

Quick guide

What a port check means

IPGetter attempts one normal TCP connection to the public address and port you specify. An open result means a TCP handshake succeeded from this server.

A failed connection does not always mean the service is down. Firewalls, allowlists, geo restrictions and rate limits can block IPGetter while allowing traffic from somewhere else.

Port 443

HTTPS web traffic.

Port 80

Plain HTTP web traffic.

Ports 22 / 25

Common SSH and SMTP ports, often restricted by firewalls.

How it works

The hostname is resolved and IPGetter attempts a TCP connection to the chosen public port from the IPGetter server, measuring how long the connection takes.

Useful when
  • Confirming a public service is reachable
  • Checking common web or mail ports
  • Distinguishing DNS resolution from TCP reachability problems
Terminal shortcut

Prefer the command line?

Test a public TCP port from the IPGetter server.

> port example.com 443 Run in Terminal ->