This plugin prevents comments spamming using language verification.
Stop user to submit a web address on the very first comments on any post and send those comments to spam folder.
MP Spam Be Gone is the simplest, most effective Spam blocker.
Make users Read More related posts and protect WordPress from spam. Displays extracts from blog posts or useful messages.
SiteBrains blocks spam posts using a completely configurable set of rules.
Both interactively as the user types and on our servers upon submission.
This plugin removes all HTML tags, BBCode tags and links from added comments (including link to author's website)
This plugin utilizes reCAPTCHA to help your blog stay clear of spam-registrations.
防止垃圾评论插件,点击正确的图形提交评论,仿"Clickcha"(Click on the Right picture to submit comments,to prevent spam comme
Automatically scatters invisible links to Project Honey Pot spam traps throughout your wordpress blog to help catch and stop spammers.
This plugin protects your WPMU signup process against spambots with a simple math question.
Returns 'Page Not Found' 404 error message for IP's visiting your blog specified in the IP Ban option on the Discussion Options page.
Asks the visitor making the comment to key in the disappeared chinese word. This is intended to prove that the visitor is a human being but a spam rob
This plugin is discontinued now. Sorry!
Adds Whitelist and Blacklist options for Trackbacks and Pingbacks
Asr verify code was displayed in the image under the comment form or login form.
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