WordPress Anti-spam Plugins

CIDRAM: A PHP-level CIDR/IP-based firewall solution.

Kcaptcha plugin is the perfect security plugin for your wordpress website forms that protects your website from spam bots.

Add a stupidly simple and lightweight contact form to your website with [contact-form-zero].

Do you get junk emails through your contact form? This plugin for SimpleForm helps prevent spam submission.

Stop comment spam with AI. Uses ChatGPT, Claude, Gemini and other LLMs to catch spam that traditional filters miss. 100% free.

Very simple antispam plugin. Users do not need to enter any captcha, working completely on background. No need to administer: just install the plugin …

Spam proof contact form that emails you the message and saves it in database.

Fancy Captcha is a jQuery plugin that helps you protect your web pages from bots and spammers. 通过拖动解锁来实现评论验证。

Scientifically proven by research from the University of Wollongong as the most secure text-based 3D CAPTCHA available -- on the most simple settings.

A lightweight anti-spam solution for Gravity Forms that blocks unwanted submissions using keyword filtering and Cyrillic text detection.

Add Cloudflare Turnstile protection to your Gravity Forms to prevent spam and bot submissions.

Интеграция сервиса Botfaqtor для защиты сайта от ботов.

Secure your site. Elevate your brand. Boost Ad Revenue.

Firewall, XML-RPC Security, Spam Protection, Redirect HTTP traffic to HTTPS, Login Page Security.

SpamShieldX is the ultimate solution for protecting your WordPress website from spam and iframe abuse. Our plugin blocks malicious iframes and prevent …

A1JSpamGuard is a simple and efficient WordPress plugin to block spam in comments, registration forms, and contact forms.

The WordPress plugin that provides small functions to help your website working better.

Protect your downloads from bots and spiders with a shortcode and Google's no-captcha reCaptcha

A simple comment captcha protection.

A simple free contact form with text-based spam prevention.

AI-powered spam filtering for Gravity Forms. Automatically detects and blocks spam submissions using advanced AI algorithms.

Visitor verification and screening for known bad actors. No CAPTCHA required to prevent comment spam, prevent contact page spam, and reduce wordpress …

Contact Camo protects email addresses by obfuscating or completely hiding them in both the source code and the DOM.

BuddyPress - Validate XProfile data with PCRE regular expressions.

Once installed, Hide Invisible Google reCAPTCHA Badge will remove immediately the annoying Google reCAPTCHA v3 badge that appears when using Google an …

WP-Mail-Validator is an anti-spam plugin. It provides mail-address validation in 5 ways:

Spam BLIP stops comment spam before it is posted, using DNS blacklists, existing comments marked as spam, and user defined lists.

Use Radical to block spam comments

Block comment spam, brute-force logins and bot registrations with reCAPTCHA v3 or Cloudflare Turnstile. Lightweight, no bloat.

Block unwanted visitors from viewing your WordPress site.

Prevents automated SPAM by requiring visitors to answer a question of your choosing (plaintext or regex).

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 …

Adds Whitelist and Blacklist options for Trackbacks and Pingbacks

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 comments,as clickcha)

This plugin protects your WPMU signup process against spambots with a simple math question.