Automattic

Matt Mullenweg

Michael Adams (mdawaffe)

Christopher Finke

Ryan Boren

Andy Skelton

Eoin Gallagher

Joseph Scott

Tellyworth

Stephane Daury (stephdau)

Greg

Lisa Schuyler

bluefuton

Derek Springer

Dave Martin (lessbloat)

kbrownkd (a11n)

Andy Perdomo (a11n)

Anti-Spam

Josh Smith

The best anti-spam protection to block spam comments and spam in a contact form. The most trusted antispam solution for WordPress and WooCommerce.
Akismet checks your comments and contact form submissions against our global database of spam to prevent your site from publishing malicious content. You can review the comment spam it catches on your blog’s “Comments” admin screen.
Major features in Akismet include:
<ul>
<li>Automatically checks all comments and filters out the ones that look like spam.</li>
<li>Each comment has a status history, so you can easily see which comments were caught or cleared by Akismet and which were spammed or unspammed by a moderator.</li>
<li>URLs are shown in the comment body to reveal hidden or misleading links.</li>
<li>Moderators can see the number of approved comments for each user.</li>
<li>A discard feature that outright blocks the worst spam, saving you disk space and speeding up your site.</li>
</ul>
PS: You’ll be prompted to get an Akismet.com API key to use it, once activated. Keys are free for personal blogs; paid subscriptions are available for businesses and commercial sites.

Akismet Anti-spam: Spam Protection

Nice

Great Plugin

Does the job

It's really good


There are many better ways to handle spam than this garbage. Indeed i with the false positive rate this plugin has it is worse than nothing


Worst antispam plugin


Akismet has been with me since I've been on WordPress and really doesn't miss when compared to other solutions. Keep up the great work!


Doesn't miss a shot


Works very well for basic users so they do not have to buy a paid one just to protect a small site.


Works very well for basic users

The best anti-spam protection to block spam comments and spam in a contact form. The most trusted antispam solution for WordPress and WooCommerce.

MikesPickz

MP Spam Be Gone is the simplest, most effective Spam blocker without difficult CAPTCHA responses needed by the user. This plugin was inspired by some of the best Anti-Spam plugins available on WordPress.
Inspirations: 
Spam Free WordPress by Todd Lahman, LLC 
Growmap Anti Spambot Plugin by Andy Bailey 
Simple Trackback Validation with Topsy Blocker by Tobias Koelligan
This plugin has aspects from all of the above mentioned plugins to form the most complete and dead simple Anti Spam plugin on WordPress. This plugin doesn’t write anything to your database while preventing comment spam and trackback spam.
From Growmap Anti Spambot Plugin, I used the concept of having a checkbox display to the user in order to prevent automated Spam. To me this is the best way (and least intrusive) to completely prevent automated spam from ever even being written to the database in the spam que. It is physically impossible to get a false positive, since you either checked the button or not. The flaw with this plugin is that it does not work with Javascript disabled.
To combat that flaw, I use the copy and paste password fields from the Spam Free WordPress plugin. These fields are in a <code><noscript></code> tag, and only appear if Javascript is disabled. Unlike, the Spam Free WordPress plugin, these passwords are generated on the fly and never stored in the database.
These plugins primarily stop comment spam. In order to stop trackback spam, I added the IP address check, URL check, and Topsy check functions from Simple Trackback Validation with Topsy Blocker. If a trackback is identified as spam because of the IP address or Topsy, it is deleted and never written to the database. If a trackback is identified as spam because of the URL, it is marked as spam and sent to the Spam que. The reason that these are not automatically deleted, is because it is possible that the referring page is using a shortlink and therefore the full URL would not appear on the page in the first place.
When combined, this plugin will stop all automated spam and trackbacks.
It is intended to replace the above plugins.
You can’t find a plugin simpler than this – set it and forget it. No options = no modifications to the database.

MP Spam Be Gone

MP Spam Be Gone is the simplest, most effective Spam blocker.

Akismet Anti-spam: Spam Protection vs MP Spam Be Gone