GetMyIpAddress

GetMyIpAddress is a simple and straightforward application you can use to quickly find out the internal and external IP address of any specified website.

Compatibility issues with newer Windows

It obtains information from whatsmyip.com when it comes to the IP address assigned to the router or proxy (external), along with the one assigned in the local network (internal).
Before proceeding any further, you should know that this app hasn't received updates for such a long time, that it no longer support newer OS editions. It displayed an error on startup and crashed in our tests.

Simple interface and options

The GUI is user-friendly, represented by a single window that displays the handful of settings provided by this utility, giving you an overview to be able to easily dive into the configuration operation.
All you have to do is type or paste the URL of a website and click a button to immediately find out its internal and external IP address. No other website details are provided.
Although there aren't options implemented for exporting data to file, it's possible to select and copy text using this global keyboard shortcut or by opening the context menu.

Portability advantages

The entire program's packed in a single .exe file that you can store anywhere on the hard drive or copy to e removable storage unit to directly launch GetMyIpAddress on any computer without setup.
It doesn't need libraries or other components to run, change your system registry settings, or create files on the HDD without asking for permission. In order to uninstall it, you simply need to delete the executable.

Evaluation and conclusion

It obtained the internal and external IP addresses swiftly in our tests while remaining light on system resources usage. However, GetMyIpAddress has just a couple of options and doesn't work properly on later Windows models.