macvk

The plugin contains the leaks test package: 
– DNS leak test 
– WEBrtc IP leak test 
– Email IP leak test 
– Torrent IP leak test
The plugin integrates with https://bash.ws, a 3rd party service, to have it do the VPN testing. 
The service is free to use and does not require an API key and/or registration, see terms of use https://bash.ws/terms. 
The plugin essentially makes a remote request (POST) to a service URL, passing an user IP address as a parameter. 
Depending on the test the following additional data are received by the service: 
– DNS leak test: the plugin does several DNS-lookup requests to the service; 
– WEBrtc IP leak test: the plugin receives additional IPs from the Internet browser; 
– Email IP leak test: the plugin asks user to send an empty email to the service; 
– Torrent IP leak test: the plugin asks user to download a torrent file from the service.

VPN leaks test

The plugin contains the leaks test package:

bsndev

#1 SECURITY PLUGIN for WordPress! We’re the only plugin that gets updated regularly to protect against the latest threats! Why trust your work to a plugin which hasn’t been updated in months or years?
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Our plugin identifies security problems with your WordPress Installation. It scans your blog for hundreds of known threats, then gives you a security “grade” based on how well you have protected yourself. You can fix the problems yourself, or you can use our <a href="http://www.ultimateblogsecurity.com/" title="help" rel="nofollow ugc">help</a> to do it for you automatically.
Our plugin and service is designed to be used by anyone from a complete newbie to an advanced PHP engineer.
Customer, Blogger and Media Reviews
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FEATURES
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<li>One click installation and activation</li>
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</ul>

Ultimate Security Checker

Plugin helps you identify security problems with your wordpress installation. It scans your blog and give a security grade based on passed tests.

VPN leaks test vs Ultimate Security Checker