lelandf

Stop Signup Spam will prevent user registration of anyone trying to sign up with an the email address or IP address that has been reported to <a href="http://stopforumspam.com/" rel="nofollow ugc">Stop Forum Spam</a>.
Contrary to what the name implies, Stop Forum Spam can be used with any web service, not just forums.
At this time, Stop Signup Spam integrates with:
<ul>
<li>The core WordPress registration form</li>
<li>Restrict Content Pro</li>
<li>MemberPress</li>
<li>Give</li>
</ul>
By installing this plugin, you consent to an API call sent from your WordPress site to Stop Forum Spam after every attempted user registration. The API call includes the user’s email address and IP address.
It is a similar concept to <a href="https://wordpress.org/plugins/akismet/" rel="ugc">Akismet</a>, except instead of checking for blog comment spam, it checks for user signup spam.
Unlike Akismet, no API key is required to query Stop Forum Spam’s database. Partly because of this, I decided not to include a settings page in the Stop Signup Spam plugin. Just activate and you are all set.
The plugin does not log any user registration info. Any data sent to Stop Forum Spam would fall under their <a href="https://www.stopforumspam.com/privacy" rel="nofollow ugc">privacy policy</a>.
Please note that Stop Forum Spam is a third-party service that I have no affiliation with. I just found it, could not find any existing WordPress plugins that worked with it, and built one myself.
It has helped me cut down on signup spam on a free membership site that I run, and I hope it will help you do the same.

Stop Signup Spam

Check user registration info against the Stop Forum Spam database before allowing registration

Minor

Simple Google reCAPTCHA will protect your WordPress! You have choice between default v2 Checkbox and v3 (like invisible reCAPTCHA).
No more spam comments and brute-force attacks against user accounts. Small plugin, only necessary code – no ads or tracking!
Google reCAPTCHA verification will be required only for not logged in users.
User, who newly setup the keys, will see (max for 10 days) emergency reCAPTCHA deactivate link – don’t need FTP access to disable Simple Google reCAPTCHA in case of emergency now.
<h4>What is protected with reCAPTCHA?</h4>
<ul>
<li>Login form</li>
<li>Registration form</li>
<li>Reset password form</li>
<li>Comment form</li>
<li>New password form</li>
</ul>
<h4>Thank you!</h4>
Thanks all of you, who are using this plugin, I really appreciate it!
If you write me (on support forum etc.), be patient, please. I work on this plugin in my free time, it’s only my hobby.

Simple Google reCAPTCHA

Simply protect your WordPress against spam comments and brute-force attacks thanks to Google reCAPTCHA v3 or v2 Checkbox for free and without ads!

Stop Signup Spam vs Simple Google reCAPTCHA