Free Proxy Verifier

Free Proxy Verifier is a small-sized and easy-to-use software application that enables you to validate a list with proxy configurations against the URL of a website. It doesn't come equipped with complicated options or customization preferences, making it accessible to all types of users.
Installing this utility is a speedy job that shouldn't give you any trouble. As far as the interface is concerned, the main app window has a simple and neatly organized structure.

Validate proxies against an URL and export results to file

You can begin by adding as many proxies as you want to the list, as long as you enter them in the correct format (IP address and port number). If you don't want to manually add a proxy, then you can open a plain text document with a list of multiple proxies. Once the website's link is specified, you can start the validation procedure with one click.
Free Proxy Verifier makes the analysis and lets you know whether the verification passed or failed, revealing the status for each proxy in the main window. This list can be exported to file for later inspection. Apart from the fact that you can create a new session, there are no other noteworthy options available here.

Evaluation and conclusion

As we expected, the tool had minimal impact on computer performance in our tests, thanks to the fact that it required low CPU and RAM to work properly. We haven't come across any stability issues, as it didn't hang, crash or prompt error messages.
Although Free Proxy Verifier comes loaded with just a few basic options for verifying proxies against website links, it's straightforward and approachable, and doesn't require extensive experience with networking utilities to figure it out. Plus, it's freeware.