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Port Checker

Check whether a TCP port on a public host accepts connections.

Run Port CheckerTest whether a public TCP port is reachable.
Quick Examples:
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Run Port Checker to view detailed results

What is Port Checker?

A port checker tests whether a TCP port on a public hostname or IP accepts connections. It is useful for checking publicly reachable services such as HTTPS, mail and other network applications.

When to use this tool

  • Check public network or website information quickly.
  • Diagnose connectivity and configuration issues.
  • Verify results while troubleshooting.
  • Use a clear, browser-based diagnostic view.

Port Checker — Frequently Asked Questions

What does the Port Checker do?

Check whether a TCP port on a public host accepts connections.

How do I use the Port Checker?

Enter the requested host / ip in the form above, then select “Check Port”. Review the returned information in the results panel.

Is the Port Checker free to use?

The public Spexo networking tools are available online without a paid subscription or account for basic use.

Why can results vary or be unavailable?

Results depend on the target host, public DNS or registration data, network path, remote service availability and current conditions. Some services limit or block automated requests.