Spider Blocker

SpiderBlocker will block most common bots that consume bandwidth and slow down your server.


Easy Blog Networks 30,000+ active installations Tested with 4.7.8 Updated 8 months ago

reCAPTCHA

Prevent brute force logins on your WordPress site with Google's reCAPTCHA.


Ash Matadeen 20,000+ active installations Tested with 4.8.4 Updated 6 months ago

GM Block Bots

This blocks semalt.com, buttons-for-website.com and others with a 403 Forbidden message so that they no…


GreenMellen Media 7,000+ active installations Tested with 4.7.8 Updated 10 months ago

Blackhole for Bad Bots

Protect your site against bad bots by trapping them in a virtual blackhole.


Jeff Starr 6,000+ active installations Tested with 4.9.1 Updated 1 month ago

WP Simple SpamCheck

This plugin allows WordPress to block over 95% of spam comments using a time-based hash.


Steven de Salas 1,000+ active installations Tested with 3.4.2 Updated 5 years ago

Hide My Mail

Hide all Email Addresses from bots by displaying it with JavaScript and Unicode.


Patrick de Koning 300+ active installations Tested with 4.1.21 Updated 3 years ago

Replytocom Controller

Replytocom Controller lets remove "?replytocom" from comment reply urls and redirect bots who try to…


Clayton Leis 300+ active installations Tested with 3.5.2 Updated 1 year ago

WP Block Semalt

Simply uses the HTTP_REFERER to determine if it's from 'Semalt', and blocks it with a…


Chris Klosowski 100+ active installations Tested with 4.2.18 Updated 3 years ago

Khush Captcha For Buddy Press

This plugin adds a new form of captcha to your Buddy Press registration and comment…


Deric Johnson 70+ active installations Tested with 3.8.24 Updated 4 years ago

Khush Captcha

Keep Your Site Happy, add Khush Captcha Anti-SpamBot Technology to your WordPress Registration and Comment…


Deric Johnson 40+ active installations Tested with 3.7.24 Updated 4 years ago

BetterAntiSpamBot

Trick the spambots. Real dynamic JavaScript encryption of your email addresses.


noneevr2 20+ active installations Tested with 3.5.2 Updated 4 years ago

BotProof Captcha 2.0

The plugin provides the next generation in captcha, BotProof Captcha 2.0, to a WordPress blog…


BotProof LLC Fewer than 10 active installations Tested with 2.7.1 Updated 8 years ago