aeyoll

<p>Pow Captcha is a WordPress plugin that adds Proof of Work (PoW) captcha verification to your forms. This provides an effective way to prevent spam and bot submissions without requiring users to solve visual puzzles or complete complex challenges.</p>
<p>The plugin integrates seamlessly with popular form plugins including:</p>
<ul>
<li>Contact Form 7</li>
<li>Gravity Forms</li>
<li>And more coming soon</li>
</ul>
<p>Features:</p>
<ul>
<li>Lightweight and fast</li>
<li>No visual puzzles for users</li>
<li>Effective spam protection</li>
<li>Easy integration with existing forms</li>
<li>Customizable difficulty levels</li>
<li>Developer-friendly with hooks and filters</li>
</ul>
<h3>WP-CLI commands</h3>
<h3>Configure the plugin</h3>
<p>wp pow-captcha set_api_key “your-secret-api-key”<br />
wp pow-captcha set_api_url “https://your-captcha-service.com”<br />
wp pow-captcha set_enable_on_login_form true</p>
<h3>Check configuration</h3>
<p>wp pow-captcha status</p>
<h3>Clear cache when needed</h3>
<p>wp pow-captcha clear_cache</p>


Pow Captcha

Adds Pow Captcha verification to forms to prevent spam and bot submissions.

WFMattR

Mark Maunder

wfryan

wfmatt

<h3>WORDFENCE LOGIN SECURITY</h3>
<p>Wordfence Login Security contains a subset of the functionality found in the full Wordfence plugin: Two-factor Authentication, XML-RPC Protection, and Login Page CAPTCHA.</p>
<p><strong>This plugin is being discontinued on or around July 1, 2026.</strong></p>
<p>All of its features are already included in the main Wordfence plugin, which is also available to use for free. We recommend installing Wordfence to continue receiving updates, security improvements, and full functionality.</p>
<p><a href="https://wordpress.org/plugins/wordfence/" rel="ugc">Install the full Wordfence plugin</a></p>
<h4>TWO-FACTOR AUTHENTICATION</h4>
<ul>
<li>Two-factor authentication (2FA), one of the most secure forms of remote system authentication available.</li>
<li>Use any TOTP-based authenticator app or service like Google Authenticator, Authy, 1Password or FreeOTP.</li>
<li>Enable 2FA for any WordPress user role.</li>
<li>Completely free to use, no limits or restrictions of any kind.</li>
</ul>
<h4>LOGIN PAGE CAPTCHA</h4>
<ul>
<li>Easily enable Google ReCAPTCHA v3 on your login and registration pages.</li>
<li>Stops bots from logging in without inconveniencing your site visitors.</li>
<li>Robust protection against password guessing and credential stuffing attacks distributed across large IP pools</li>
</ul>
<h4>XML-RPC PROTECTION</h4>
<ul>
<li>XML-RPC is the biggest target for WordPress attacks, but is often overlooked.</li>
<li>Protect XML-RPC with 2FA or disable it altogether if it’s not needed.</li>
</ul>


Wordfence Login Security

The Plugin works and integrates nicely into wordfence security and wp itself. TOTP works great, and the captcha integration works too. Sadly it doesn't support multiple 2fa methods like TOTP & "backup codes" as well as email as backup. Other 2fa methods like U2F are not supported. This Plugin doesn't work with the yubico yubikey hardware keys. 

Good, but somewhat limited

Good compliment to Wordfence, but please add login URL obfuscation!

Because you do not do this either I take another plugin as well like WPS Hide Login, or I just take WP Cerber which does everything!

Great, but...

Easy to use


Does not include the ability to limit login attempts, add password complexity requirements, or anything that would comprise modern security best practices. It's strictly a 2FA plugin, which is done more simply and better by other plugins. It does work tho.


Too much load for a simple 2FA plugin

Secure your website with Wordfence Login Security, providing two-factor authentication, login and registration CAPTCHA, and XML-RPC protection.

Pow Captcha vs Wordfence Login Security