Shohidul Islam Apu

CF7 Math Captcha is a lightweight plugin that adds a math captcha field to your Contact Form 7 forms. 
It helps reduce spam without using Google reCAPTCHA. 
Very simple to use: just add <code>[mathcaptcha* captcha-field]</code> to your Contact Form 7 form.

Math Captcha for Contact Form 7


Nice, clean and lightweight solution for adding Math Captcha to Contact Form 7. Works smoothly and keeps spam away without extra hassle. Good job, bro! 👏


Keeps spam away without extra hassle

Adds a simple math captcha field for Contact Form 7 to prevent spam submissions.

Shea Bunge

<blockquote>
Important: Since version 2.0, this plugin now requires at least PHP 5.3. Please ensure you are running the latest available version of PHP on your server.
</blockquote>
This plugin adds <a href="https://www.google.com/recaptcha/" rel="nofollow ugc">Google’s reCAPTCHA</a> to the BuddyPress registration page and WordPress login page to prevent bots from registering and keep your site free from spam registrations.
reCAPTCHA is “tough on bots, easy on humans”: while it is increbianle effective on preventing bots from registering, most of the time all the user needs to do to verify themselves is simply check a box.
After installing this plugin, you will need to <a href="https://www.google.com/recaptcha/admin" rel="nofollow ugc">register your site with Google</a> (requires a Google account) and enter the site key and secret key on the Settings > BuddyPress > Options admin menu. If you would prefer not to use Google’s service, there is an alternative security check method also available; see below;
Prior to version 2.0, a less effective security check method was used where the user needed to answer simple math sum before registering. This method is still available, and can be turned on on the Settings > BuddyPress > Options menu.
You can learn more at the <a href="https://bungeshea.com/plugins/bp-security-check/" rel="nofollow ugc">plugin’s website</a>, or on <a href="https://github.com/sheabunge/bp-security-check" rel="nofollow ugc">GitHub</a>
Translations
Thanks to the awesome work of the following translators, this plugin can be used in these languages:
<ul>
<li>Indonesian thanks to <a href="https://www.chameleonjohn.com/" rel="nofollow ugc">Jordan Silaen from ChameleonJohn.com</a></li>
<li>Russian thanks to <a href="http://superbwebsitebuilders.com/" rel="nofollow ugc">Howard Steele from SuperbWebsiteBuilders.com</a></li>
<li>Swedish thanks to <a href="http://tdh.me" rel="nofollow ugc">Thord D. Hedengren</a></li>
<li>French thanks to Frédérick Baldo</li>
<li>Serbo-Croatian thanks to <a href="https://webhostinggeeks.com" rel="nofollow ugc">Andrijana Nikolic from WebHostingGeeks</a> and <a href="http://firstsiteguide.com/" rel="nofollow ugc">Ogi Djuraskovic from FirstSiteGuide.com</a></li>
<li>Spanish thanks to Renato Alves</li>
<li>Hungarian thanks to Laszlo Espadas</li>
<li>Brazilian Portuguese thanks to Renato Alves</li>
<li>Danish thanks to Andreas Bjørn Hassing Nielsen</li>
<li>Italian thanks to <a href="http://nicolecurioni.com/" rel="nofollow ugc">Nicole Curioni</a></li>
<li>Belarusian thanks to <a href="https://www.ustarcash.com" rel="nofollow ugc">Natasha from uStarCash</a></li>
</ul>
If you have a translation to contribute, please sent it through to me <a href="https://bungeshea.com/contact/" rel="nofollow ugc">by email</a> or <a href="https://github.com/sheabunge/bp-security-check/pulls" rel="nofollow ugc">on GitHub</a>.

BuddyPress Security Check

Combat spam registrations for a BuddyPress-powered site using Google's reCAPTCHA

Math Captcha for Contact Form 7 vs BuddyPress Security Check