Automattic

Donncha O Caoimh (a11n)

This plugin adds a stylesheet or image to your blog’s html source code. When a browser loads that stylesheet or image a cookie is dropped. If that user then leaves a comment the cookie is checked. If it doesn’t exist the comment is marked as spam. 
The plugin can also check how long it took a user to enter a comment. If it’s too fast it’s probably a spam bot. How fast can a legitimate user enter their name, email, web address and enter a well thought out comment?
For the adventurous, add these lines to your .htaccess and it will block spam attempts before they ever get to WordPress. Replace the Xs with the cookie that was set in your browser after viewing your blog. You can also find the cookie value by examining the page source code and looking for “css.php?k=XXXXXXXXXXXXXXXXXXX”. Make sure the lines go above the standard WordPress rules.
<pre><code> RewriteCond %{HTTP_COOKIE} !^.*XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.*$
 RewriteRule ^wp-comments-post.php - [F,L]
</code></pre>
If you use WordPress MU, replace wp-comments-post.php above with wp-signup.php to block spam signups.
<pre><code> RewriteCond %{HTTP_COOKIE} !^.*XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.*$
 RewriteRule ^wp-signup.php - [F,L]
</code></pre>

Cookies for Comments

If you don't use any other spam filter plugins, then you can rely on this to stop spam comments for sure!

Must have, if you don't use any other spam filters!

I'd been getting a dozen spams a day on two of my sites. We installed "Stop Spam Comments" on one and "Cookies for Comments" on the other. Both worked perfectly. No more spam. Thanks!



very easy and no more spam!

Sets a cookie on a random URL that is then checked when a comment is posted. If the cookie is missing the comment is marked as spam.

consentmanager Cookie Banner

The <a href="https://consentmanager.net/" rel="nofollow ugc">consentmanager Cookie Banner</a> provides a comprehensive, effortlessly integrated Consent Management Platform (CMP) plugin tailored for WordPress. Create your consent banner in minutes and protect your website(s) from legal fines, designed by privacy experts for companies of all sizes and industries. It supports global compliance with key privacy laws such as GDPR (EU), CCPA (US) , FADP (Switzerland), PIPEDA (Canada) and privacy frameworks such as the IAB Transparency and Consent Framework v2.2 and the Global Privacy Platform (GPP). In addition, consentmanager keeps pace with a wide range of internet-related requirements that are critical for professionals in marketing, advertising, analytics, and related fields. Users can achieve full compliance with Google Consent Mode v2 and other Google services, including Google AdSense, Google Ad Manager and Google AdMob, and safeguard your monetisation efforts with the Google-certified CMP from consentmanager. The consentmanager WordPress plugin gives you access to an advanced CMP framework with seamless compatibility with over 2500 tools and language support for over 30 options.
Designed for plug and play simplicity, consentmanager users can go much further with the use of A/B testing functionality, advanced machine learning and the ability to use our reporting tools of over 30 metrics. With the ability for customisation, our platform is tailored to the specific needs of your site. It has a built-in cookie crawler and offers **extensive customization options to match your site’s aesthetic, enhancing the user experience without compromising on compliance.
How does it work?
Our CMP solution is very simple to integrate:
<ol>
<li>Simply login to your consentmanager.net account</li>
<li>Setup the cookie banner for your website(s)</li>
<li>Copy your CMP-ID which you can find in your consentmanager dashboard, and paste it into the consentmanager wordpress plugin</li>
</ol>
And you’re done!
Our platform will automatically start gathering cookie consent notices from your visitors. As soon as the code is in your website, advertisers will have access to the consent data via the open source API defined by the IAB TCF.
In addition you will get detailed reports which show you how your visitors are behaving with the consent layer, how many consents you get and how you can optimize your strategy in order to obtain higher rates of consent.
Features
<ul>
<li>Fully customisable: Tailor your cookie banner to fit seamlessly into your website’s aesthetic.</li>
<li>A Google certified CMP and fully compliant with Google Consent Mode v2.</li>
<li>Integrated Cookie Crawler: Automatically detect and manage cookies and trackers on your site.</li>
<li>Multi-language support: Reach a global audience with support for over 30 languages.</li>
<li>Comprehensive compliance: Ensures compliance with GDPR, CCPA, FADP, PIPEDA and other key regulations.</li>
<li>Easy integration: Simply copy and paste your unique CMP ID into the consentmanager WordPress plugin.</li>
<li>Extensive tool compatibility: Works seamlessly with over 2500 tools and platforms.</li>
<li>IAB TCF Framework participation: A proud member and co-author of the IAB TCF & GPP Framework, our CMP ensures compliance with industry standards.</li>
</ul>
Quick Facts
To help you understand the scope and effectiveness of the consentmanager WordPress plugin, consider these quick facts:
<ul>
<li>consentmanager’s Cookie Notice has helped more than 25,000 websites become compliant</li>
<li>Compatible with major solutions like Google Analytics, Facebook, Hubspot, and many more.</li>
<li>Exclusively utilizes European servers for data storage, ensuring data sovereignty and compliance with “Schrems II” requirements.</li>
<li>Supports website integration, AMP-sites, and mobile apps (Android/iOS), with optional age-verification mechanisms.</li>
</ul>
Tools offered by consentmanager:
<ul>
<li>Consent/Cookie Banner Generator</li>
<li>Privacy policy text generator</li>
<li>Whistleblower Software</li>
<li>Mobile SDK Integration</li>
<li>Data Subject Rights Management</li>
<li>Privacy-friendly Website Analytics</li>
</ul>
Support and Updates
The consentmanager team is dedicated to providing continuous updates and support, ensuring your website remains compliant with evolving privacy regulations. For assistance or more details, visit our support center or contact us directly.
<ul>
<li><a href="https://help.consentmanager.net/" rel="nofollow ugc">Support Centre</a></li>
<li><a href="https://www.consentmanager.net/contact/" rel="nofollow ugc">Contact us</a></li>
<li><a href="mailto:support@consentmanager.net" rel="nofollow ugc">E-Mail us</a></li>
</ul>
About consentmanager
With over a decade of experience in the adtech industry and a commitment to data privacy and compliance, consentmanager has established itself as a trusted leader in consent management. Our Cookie Banner technology empowers businesses across the globe to manage user consent effectively, fostering trust and ensuring compliance with international privacy laws.

Great tool

First of all, the plugin works.

BUT...

Coding standards? Not existing.

Security? Who cares, we just save directly from $_POST without any sanitization.

Writing a 5* review for your own plugin? Yeah, absolutely what everyone should do... at least they don't hide it.

Extremely poorly written code

The consentmanager Cookie Banner and Cookie Notice allows you to easily collect cookie consent from your website visitors, ensuring GDPR compliance.

Cookies for Comments vs consentmanager Cookie Banner