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Port Scanner

IP/URL:
Port:
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Use the Port Scanner tool to provide you with information regarding valid methods of connecting to a network.

What is a port?

Network ports are used for routing incoming information from a network to specific applications on a machine. The Port Scanner tool displays which ports on a network are open for communication. Whether or not a port is open can help with setting up IP security cameras, determining if a network is secure, as well as other network-related operations.

Scan types

To begin, enter a valid IP address or URL at the top of the page. After that, you can scan ports on the IP/URL individually or in pre-made packages. If you are a gold member, you can also scan ports in a numeric range or in a custom package (no more than 100 ports at once for any scan type).

  1. To scan individually, select 'individual', input a valid port number, and select 'Scan'. The tool will display the status of the chosen port below the scan button.
  2. To scan by package type, select 'package' and choose a package from the dropdown menu. Ports contained in the package will then be displayed below the dropdown. When you have made your selection, select 'Scan'. The tool will display the status of each port in the package below the scan button.
  3. To scan by numeric range, select 'range', input a valid port number to start, input another valid port number to stop, and select 'Scan'. The tool will then display the status of each port between and including the starting and ending ports below the scan button.
  4. To scan by custom package, select 'custom', enter each desired port to scan on its own line in the text box shown, and select 'Scan'. The tool will then display the status of each inputted port below the scan button.

If a port is displayed as open, that means it is open for remote communication. Otherwise, the port should be closed to remote communication. Just because a port displays as closed through our tool, you should always double-check your router configuration to be sure. Slow network speeds or slow machines can lead to ports incorrectly being classified as closed.

If you have any questions about the Port Scanner tool or the results, please check out the IP Tools Questions Category.

If you have any questions about how to open or close ports on your network, please check out the Port Forwarding Questions Category.