You could have downloaded PFPortChecker 1.0.40 from our software library for free. The most popular version of the PFPortChecker 1.0. The software is included in Internet & Network Tools. Our built-in antivirus scanned this download and rated it as virus free. This free PC software is developed for Windows XP/XP Professional/Vista/7/8/10/11 environment, 32-bit version. The PFPortChecker installer is commonly called PFPortChecker.exe. This free software is an intellectual property of Portforward.
From the developer:
This port test uses a local application to listen for the server trying to connect and the positively verifies that your port is forwarded.
Most online port checks assume that you already have an application (such as your game or torrent) listening for the port test on your computer, and then assume that the test was OK simply because they were able to connect to your computer.
You may want to check out more software, such as Hamachi, Spiceworks or SoftPerfect Bandwidth Manager, which might be similar to PFPortChecker.