WP SITES

Note: Requires WordPress 3.6 or higher
This plugin simply removes:
<ol>
<li>The Website URL Field From All Comment Forms.</li>
<li>ALL Comment Form Allowed Tags Which Attract Automated Comment Form Spam.</li>
<li>The ‘Your email address will not be published’ text which also attracts comment form bots because it includes the text ’email’.</li>
</ol>
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Stop Comment Form Spam

New WordPress 3.6 or higher plugin which removes the website url field and comment form allowed tags which attract automated comment spam.

Nitin Rathod

This plugin used to add Puzzle Captcha to WordPress login and Register form and various WordPress Forms Plugins. Currently, it support only Contact Form 7 plugin.
Users must solve the puzzle captcha to confirm that they are not a robot before submitting login form of wp-admin, register form of wp-admin and contact form 7. It’s an easy way to solve the puzzle, just drag arrow from left to right to solve the puzzle and it is hard for bots to solve.
<h4>How does it work?</h4>
After activation of plugin, go to setting page of the plugin from where you can enable/disable the puzzle captcha for login form and register form of admin and there is an instruction of how to add puzzle captcha to Contact form 7 plugin.

WP Forms Puzzle Captcha

This plugin used to add Puzzle Captcha to WordPress login and Register form and various WordPress Forms Plugins.

Stop Comment Form Spam vs WP Forms Puzzle Captcha