WordPress Antispam Plugins

antispam question for signup and comment forms of wordpress, set by admin, supports Multisite mode

Pipe Recaptcha is funny, easy and more secure from spammers. It can be added into Contact form 7, Comment form, Registration form, Login form simply.

Slide Captcha it is a WordPress plugin that add a slide captcha field to the WordPress comment form.

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)

A simple to use plugin that helps you keep your WordPress site clean of spam comments.

WPshore Contact Form 7 Spam Prevention helps you manage your Inbox to keep it free of unwanted e-mail messages.

NF Captcha adds Really Simple CAPTCHA element for human check.

Tornevall Networks DNSBL implementation with FraudBL support for WordPress

BotScout is a third-party antispam service. It maintains a database of known spammer bots which can be checked to determine if a given IP or email has …

This plugin translate your email address into a link with encoded string.

Lemin Captcha is uniquely playful, robust, and effective. Through gamification, we are curing the pains of traditional CAPTCHA.

Obfuscation of email via the [antispambot]...[/antispambot] shortcode syntax using built-in Wordpress Codex functionality.

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

Firewall protection for comments. Blocks spam before it reaches your database with automatic link filtering and zero manual moderation.

Increase security and protect against bots, spammers and hackers with VisualWP Anti-Spam and Fraud Prevention

Protect your WordPress site from spam comments and form submissions using AI-powered detection with Gemini or OpenAI.

reCAPTCHA for login, signup, comment, WooCommerce, Mailchimp and other forms.

Ctanfor Anti-spam is a small and lightweight anti-spam plugin. It is free for personal and commercial use. The vast majority of filtering operations a …

A simple and robust anti-spam plugin that adds a submission delay, JavaScript token, and a honeypot field to your site's forms.

Invisible 15-layer anti-spam for Contact Form 7 & WPForms. Score-based 3-Tier Triage silently blocks bots — no CAPTCHA, no user friction.

AI-powered comment spam detection using GPT-4. Blocks spam comments with inline user warnings—no CAPTCHA needed.

Simple spam protection using an inverted checkbox. Compatible with Contact Form 7 and custom HTML forms.

Maintaining a culture of online communication in the hands of the users themselves.

Protect email addresses and phone numbers from spam bots with a simple shortcode.

This plugin uses the OpenAI gpt-4o and gpt-4-turbo models to analyze and filter comments made on your texts.