19 Most Active WordPress Spam Filter Plugins

  • WP-SpamShield Anti-Spam

    An exceptionally powerful WordPress anti-spam plugin that eliminates comment spam, trackback spam, contact form spam & registration spam.

  • Google Captcha (reCAPTCHA) by BestWebSoft

    This plugin allows you to implement Google Captcha (reCAPTCHA) into web forms.

  • Clean-Contact

    A Clean, no hassle contact form plugin for Wordpress, with advanced Spam bot protection that doesn't require Captcha.

  • Google No CAPTCHA reCAPTCHA by WisdmLabs

    The plugin adds a No CAPTCHA reCAPTCHA tag in Contact Form 7, which can be used to include a No CAPTCHA reCAPTCHA anti-spam field.

  • WP Spam Fighter

    Comment spam prevention without moderation, captchas or questions

  • Boom Captcha

    Best CAPTCHA solution, prevent spams, you can customized CAPTCHA challenge text and have people type Captcha it, better Captcha experience.

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  • WP Block Referrer Spam

    Block 250+ spam sites, such as semalt.com and 4webmasters.org! Keep your website safe and your Google Analytics statistics clean and accurate.

  • visualCaptcha

    The best captcha alternative. Accessible, Mobile-friendly, and Retina-ready!

  • WP referrer spam blacklist (Ghost Spam in Google Analytics)

    WordPress plugin to fight with more than 285 referrer spammers (like semalt, buttons-for-website and many more).

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  • SiteBrains Interactive Spam Blocker

    SiteBrains blocks spam posts using a completely configurable set of rules. Both interactively as the user types and on our servers upon submission.

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  • WP-Check Spammers

    Check comment against the SpamBot Search Tool using the IP address, the email and the name of the poster as search criteria.

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  • Squelch Unspam

    Unspam makes it harder for spammers to automatedly send spam to your blog by changing the names of the fields in the comment forms.

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  • WP Spam IP

    WP Spam IP is a simple and effective WordPress plugin that adds known Spam IP adresses to your Settings -> Discussion -> Comment Blacklist.

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  • Spam statistics

    Show spam statistics on your blog. (Now merged into SpamTask)

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Leave a comment below if we missed any of your favorite spam filter plugins.

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