er11

<p>e11 reCAPTCHA is a no-frills way to add Google’s reCAPTCHA widget to the standard WordPress comment form and/or the user registration page.  By default it will require only logged-out users to solve CAPTCHAs on comments and new users to solve a CAPTCHA to successfully register on the site; it’s also possible to configure e11 reCAPTCHA to not require CAPTCHA solving in either of these two forms or to require it on comments by all users.</p>


e11 reCAPTCHA

WordPress plugin to use reCAPTCHA to help protect comments and new user signups against spam.

EverPress

Xaver

Mailster Newsletter Plugin

<p>Adds a reCaptcha™ to your Mailster subscription forms.</p>
<p>You may also try <a href="https://wordpress.org/plugins/mailster-cool-captcha/" rel="ugc">Mailster Cool Captcha for Forms</a></p>
<h3>Additional Info</h3>
<p>This Plugin requires <a href="https://mailster.co/?utm_campaign=wporg&utm_source=wordpress.org&utm_medium=readme&utm_term=reCaptcha" rel="nofollow ugc">Mailster Newsletter Plugin for WordPress</a></p>


Mailster reCaptcha


It looks like this plugin is not working anymore, a lot of spam registration even with reCaptcha activated.


Stop working

Not working anymore

Adds a reCaptcha™ to your Mailster subscription forms.

e11 reCAPTCHA vs Mailster reCaptcha