WP-Hashcash
Client-side javascript blocks all spam bots. XHTML 1.1 compliant.
Plugin tag: spam
AVH First Defense Against Spam
The AVH First Defense Against Spam plugin gives you the ability to block spammers before…
Conditional CAPTCHA
Asks commenters to complete a simple CAPTCHA if they don't have a previously approved comment,…
Math Comment Spam Protection
Asks the visitor making the comment to answer a simple math question. This is intended…
Spam Destroyer
Kills spam dead in it's tracks. Be gone evil demon spam!
Contact Form 7 Image Captcha
Adds a clean image captcha to Contact Form 7
WPCommentCleaner
WPCommentCleaner is a very simple tool which can batch process SPAM, un-apporved and approved comments.
Anti-Captcha (anti-spam botblocker)
Anti-Captcha is a transparent spam solution that does not require any end-user interaction.
Spammer Blocker
This plugin prevents users from commenting or viewing your website if a comment of theirs…
FV Antispam
FV Antispam is a powerful and simple antispam plugin. It moves any spambot comments directly…
Simple Trackback Validation
Performs a simple but very effective test on all incoming trackbacks in order to stop…
Bulk Comments Management
This plugin allows administrators to globally delete comments (spam, trash, unapproved comments), enable/disable comments on…
Uber reCaptcha
This plugin adds the reCaptcha form to the WordPress login form, recover password form, register…
SpamReferrerBlock
This plugin prevents spam referrer attacks by filtering your incoming traffic.
