Prevent people from registering with emails that contain a subdomain to help reduce spam.
Zero Spam makes blocking spam comments a cinch. Install, activate and enjoy a spam-free site. Supports Gravity Forms, Ninja Forms, BuddyPress & mo
To protect your Blog from automated spambots, this plugin adds invisible formfields to your comment form.
Block comment spam in WordPress with this plugin. Verify comments automatically with the SpamLytics API, and prevent comment spam. No captcha.
This plugin allows you to implement super security captcha form into web forms.
Adds a honeypot form field on the registration and login pages to trap spammers.
Spam BLIP stops comment spam before it is posted, using DNS blacklists, existing comments marked as spam, and user defined lists.
Сaptcha generated numbers and latin characters. Designed for use in custom forms and displays a simple shortcode, and connect to log form.
REPLACEMENT of the original Simple Trackback Validation Plugin from Miachel. Performs a simple but very effective test on all incoming trackbacks in o
Provides a configurable limit on the length of comments left in the comment form, with a dynamically updated character count displayed for the user.
Adds Google’s No CAPTCHA reCAPTCHA to bbPress forms.
Aggressive anti-spam plugin that eliminates comment spam, trackback spam, contact form spam and registration spam. Protects against malicious attacks.
A clean, secure, plug-&-play contact form for WordPress.
Automatic break iframes ban the iranian spam rss reader sites.
Industry leading bot detection and analytics through the use of the Ellipsis Human Presence score proprietary technology.
NURCaptcha inserts a reCAPTCHA on the Register Form of your site to protect it against spambots.
Automatically approve comments from trustful commenters and users even if you set the comments to be manually approved to avoid spam.
Protect your site against bad bots by trapping them in a virtual blackhole.
The most lightweight Google reCAPTCHA v2 comment anti-spam plugin!
Blocks referer/referral spam from accessing your site and cleans up your Google Analytics in the process!
License URL: http://mit-license.org/ The WordPress plugin that provides small functions to help your website working better.
Combat spam registrations for a BuddyPress-powered site using Google's reCAPTCHA
No spam in comments. No captcha.
With the Byteplant Email Validator plugin you can easily verify if an email address really exists and is valid (http://www.email-validator.net).
Easiness and effectiveness are the keys for a valid Captcha control. DC generates appealing captcha for your WP blog without compromising usability.
Comment Spam Prevention without CAPTCHA. No CAPTCHA, No SPAM!
Create responsive contact forms, order forms, registration forms and more. For free and without ever leaving WordPress.
Adds CAPTCHA anti-spam methods to WordPress on the forms for comments, registration, lost password, login, or all.
Stop spam bots from registering, logging in, filling out contact forms and commenting on your site without using annoying Captcha codes or puzzles.