Akismet checks your comments against the Akismet Web service to see if they look like spam or not.
An exceptionally powerful WordPress anti-spam plugin that eliminates comment spam, trackback spam, contact form spam & registration spam.
WordPress Website Security Protection: Firewall Security, Login Security, Database Security... Effective, Reliable, Easy to use...
Heyoya is a revolutionary voice reviews and comments platform that is transforming the way people interact with products and content online!
WordPress plugin to fight with more than 270 referrer spammers (like semalt, buttons-for-website and many more).
A more seamless approach to deflecting the vast majority of SPAM comments.
Todd Lahman's comment spam blocking plugin that blocks automated spam with zero false positives.
Learn more about your users with a custom poll!
Unique, beautiful, responsive surveys for your site.
Sell anything on any site.
Simple, beautiful forms in seconds!
A custom contact form for your site.
Collect contacts for your mailing list with this custom form!
This plugin blocks spam sites like semalt.com and buttons-for-website.com from reaching your website and affecting your Google Analytics statistics.
Zero Spam makes blocking spam comments a cinch. Install, activate and enjoy a spam-free site. Supports Gravity Forms, Ninja Forms, BuddyPress & mo
Block users from registering to your WordPress site with custom defined blacklists.
Search the files and database of your WordPress install for signs that may indicate that it has fallen victim to malicious hackers.
Customize your email notice settings and permits you to set possibles choices of messages sent by WordPress.
Tor Blocker stands for limiting actions to the users that came from Tor nodes.
Optimizes the WordPress Database after Cleaning it out
A customisable human detection plugin, that isn't annoying. Seriously.
Detect the comment which potentially recognized as spam
To protect your Blog from automated spambots, this plugin adds invisible formfields to your comment form.
“…another popular solution to fight spam is Antispam Bee”—Matt Mullenweg, Q&A WordCamp Europe 2014
This plugin helps you create new members in your Wishlist Membership site based on ONTRAPORT contacts and tags. It is the easiest way to Automate your
Protect WordPress login, registration, comment and BuddyPress registration forms with Google's No CAPTCHA reCAPTCHA.
Never moderate or mark as spam comments made by registered users, regardless of the apparent spamminess of the comment.
An extremely powerful anti-spam plugin that blocks Spam-bots without annoying captcha images.