John Dalesandro

<p>Most spam filters make your visitors do the work by solving captchas, clicking image grids, or proving they are human before they can leave a comment. <strong>Analytical Spam Filter</strong> takes a different approach. It analyzes how a submission behaves and blocks spam automatically, with no friction for legitimate visitors.</p>
<p><strong>Key Features</strong></p>
<ul>
<li>No captchas</li>
<li>No API keys</li>
<li>No third-party services</li>
<li>Privacy-friendly design</li>
<li>Behavioral spam detection</li>
<li>IP reputation tracking</li>
<li>Content fingerprinting</li>
<li>Cache-compatible operation</li>
</ul>
<p>Install it, activate it, and it starts working.</p>
<p>Spam is identified by observing behaviors that real visitors naturally exhibit. People take time to read before typing, interact with the page, and use a real browser. Bots often skip those signals. The plugin uses those differences to distinguish legitimate submissions from automated spam without interrupting the user experience.</p>
<p>The plugin uses multiple independent detection techniques on every submission. A bot that bypasses one check is likely to be caught by another. This layered approach improves effectiveness over time. Once a spammer’s IP address or message content has been identified, future attempts can be blocked more quickly. Visitors with a previously approved comment are never flagged, regardless of the spam history associated with their IP address.</p>
<p>No visitor data is sent to external spam services, and no account registration or API configuration is required.</p>
<p>All field names added by the plugin are randomized during installation and can be regenerated at any time. This helps prevent bots from targeting the plugin based on known source code signatures. The plugin is compatible with caching plugins when Cache Compatibility is enabled.</p>
<p><strong>The plugin blocks spam submitted through the default WordPress comment form only.</strong> It is also automatically compatible with the <strong>Micro Contact Form</strong> plugin.</p>
<h4>Blocking Methods</h4>
<ul>
<li><strong>Timestamp Blocking</strong> — Records when the page loaded and when the form was submitted. Submissions that arrive too quickly to have genuinely read the page, or after the token has expired, are blocked.</li>
<li><strong>Duration Blocking</strong> — Measures how long the visitor actively spent filling out the form. Bots fill forms almost instantly. Requires Cache Compatibility to be enabled.</li>
<li><strong>IP Blocking</strong> — Remembers which IP addresses have been blocked before. Once an address reaches the configured threshold, future submissions are flagged without running the remaining checks. IP addresses with a previously approved comment are never flagged.</li>
<li><strong>Content Blocking</strong> — Remembers the content of blocked spam. If the same message appears again from a different IP address, it is flagged immediately. Content that matches a previously approved comment is excluded from the spam history.</li>
<li><strong>Honeypot</strong> — Adds a hidden field that legitimate visitors never see or interact with. Bots that fill every available field are caught. Submissions where the field is missing entirely are also flagged.</li>
<li><strong>Automated Client Detection</strong> — Blocks submissions from automated tools that do not identify themselves as a real browser. Legitimate visitors send this information automatically.</li>
<li><strong>Referer Check</strong> — Blocks submissions that did not originate from a page on your own site.</li>
<li><strong>URL / Domain Blocking</strong> — Flags submissions containing more URLs or domain names than the configured limit. Spam comments frequently contain multiple links.</li>
<li><strong>JavaScript Check</strong> — When Timestamp or Duration Blocking is active, the plugin can determine whether JavaScript ran when the form loaded. Bots that skip JavaScript are caught automatically.</li>
<li><strong>Randomized Field Names</strong> — Hidden field names are randomized during installation and can be regenerated at any time from the settings page, so bots cannot target the plugin based on known field names.</li>
<li><strong>Trackback Blocking</strong> — Optionally block all trackbacks, which are a common source of spam.</li>
<li><strong>Pingback Blocking</strong> — Optionally block all pingbacks, which are a common source of spam.</li>
</ul>
<h4>General Options</h4>
<ul>
<li>Send email notifications for blocked spam, valid submissions, or all submissions</li>
<li>Configurable email rate limit to prevent inbox flooding during attacks</li>
<li>Add spam to the WordPress spam queue, or block and reject it immediately</li>
<li>Optionally show rejection reasons to the submitter</li>
<li>Enable Cache Compatibility for caching plugin support and duration blocking</li>
<li>Regenerate security keys at any time from the settings page</li>
</ul>


Analytical Spam Filter

Stop spam without making your visitors prove they're human. No captchas, no accounts, and no external services required.

Matthias Pfefferle

Bernhard Kau

Pascal Birchler

Simon Kraft

pluginkollektiv

websupporter

Torsten Landsiedel

Florian Brinkmann

Alain Schlesser

<p>Say Goodbye to comment spam on your WordPress blog or website. <em>Antispam Bee</em> blocks spam comments and trackbacks effectively, without captchas and without sending personal information to third party services. It is free of charge, ad-free and 100% GDPR compliant.</p>
<h3>Feature/Settings Overview</h3>
<ul>
<li>Trust approved commenters.</li>
<li>Trust commenters with a Gravatar.</li>
<li>Consider the comment time.</li>
<li>Allow comments only in a certain language.</li>
<li>Block or allow commenters from certain countries.</li>
<li>Treat BBCode links as spam.</li>
<li>Use regular expressions.</li>
<li>Search local spam database for commenters previously marked as spammers.</li>
<li>Notify admins by e-mail about incoming spam.</li>
<li>Delete existing spam after n days.</li>
<li>Limit approval to comments/pings (will delete other comment types).</li>
<li>Select spam indicators to send comments to deletion directly.</li>
<li>Optionally exclude trackbacks and pingbacks from spam detection.</li>
<li>Optionally spam-check comment forms on archive pages.</li>
<li>Display spam statistics on the dashboard, including daily updates of spam detection rate and a total of blocked spam comments.</li>
</ul>
<h3>Support</h3>
<ul>
<li>Community support via the <a href="https://wordpress.org/support/plugin/antispam-bee" rel="ugc">support forums on wordpress.org</a></li>
<li>Read <a href="https://antispambee.pluginkollektiv.org/documentation/" rel="nofollow ugc">the documentation</a></li>
<li>We don’t handle support via e-mail, Twitter, GitHub issues etc.</li>
</ul>
<h3>Contribute</h3>
<ul>
<li>Active development of this plugin is handled <a href="https://github.com/pluginkollektiv/antispam-bee" rel="nofollow ugc">on GitHub</a>.</li>
<li>Pull requests for documented bugs are highly appreciated.</li>
<li>If you think you’ve found a bug (e.g. you’re experiencing unexpected behavior), please post at the <a href="https://wordpress.org/support/plugin/antispam-bee" rel="ugc">support forums</a> first.</li>
<li>If you want to help us translate this plugin you can do so <a href="https://translate.wordpress.org/projects/wp-plugins/antispam-bee" rel="nofollow ugc">on WordPress Translate</a>.</li>
</ul>
<h3>Credits</h3>
<ul>
<li>Author: <a href="https://sergejmueller.github.io/" rel="nofollow ugc">Sergej Müller</a></li>
<li>Maintainers: <a href="https://pluginkollektiv.org" rel="nofollow ugc">pluginkollektiv</a></li>
</ul>


Antispam Bee

I have been using this for several years now and not had a single issue with spam.

lightweight and awesome.

Thank you.

The best antispam plugin


Using it since years and had no spam in my blog ever. Simple, clean, works.


Best Antispam Plugin


I've tested this plugin and seems to working very well. Most spam comments are gone, some of them (just a little) are able to avoid spam filters.



There is something need to be fixed and I'm already posted in support forum. I hope that it will be fixed soon.


Very good spam filter plugin.


Works quite well without calling out to a remote service, and doesn't require your visitors to be using JavaScript. (Seriously, I posted a test comment using Dillo and it showed up in the moderation queue!) No need to deal with API keys or licensing.



There are some optional tactics that will call a remote service for things like language identification, but so far it's doing the job fine without them!



The only problem I've had with it is that it only acts on comments, not on other features like contact forms.


Privacy-friendly spam filter


Simple to set up and use. Catches all the spam and deletes it before I get a chance to see it. Might miss one or two pieces a week, but that's still better than JetPack and it preserves my users' privacy.


Works better than JetPack


This is an amazing free plugin!What a mental dysfunction to generate spam, what a waste of resources, time, attention.Antispam Bee does a great job, for free.Thank you!


Spam pest...

Sophisticated antispam plugin for effective daily comment and trackback spam-fighting. Built with data protection and privacy in mind.

Analytical Spam Filter vs Antispam Bee