An exceptionally powerful WordPress anti-spam plugin that eliminates comment spam, trackback spam, contact form spam & registration spam.
Todd Lahman's comment spam blocking plugin that blocks automated spam with zero false positives.
The fastest firewall plugin for WordPress.
Spam protection, anti-spam, all-in-one, premium plug-in. No comments spam & registrations spam, no email spam, protects any forms. Forget spam.
The Most Comprehensive and Highest-Rated Security System for WordPress (formerly the WordPress Simple Firewall).
Allow or disallow visitors from certain countries accessing (parts of) your website
Limit Login Attempts for login protection. Limit rate of login attempts and block IP temporarily. It is protecting from brute force attacks.
To protect your Blog from automated spambots, this plugin adds invisible formfields to your comment form.
Protect WordPress website against brute force attacks. Limit rate of login attempts.
Protects site against brute force attacks. Restrict login by IP access lists. Limit login attempts. Comprehensive control of user activity.
The AVH First Defense Against Spam plugin gives you the ability to block spammers before any content is served.
WP Anti Spam can anti automated spambots or anti spams by"comment","ip","name","email","url".
Allow users to edit comments for a limited time, while admins can edit all comments.
Blacklist IP Addresses from visiting your WordPress website and Usernames from spamming. View details of all failed login attempts.
Monitor and display registered users activity (logins, posts, comments, etc.). You can also track and prevent hackering attemps, with IP blacklisting.
Autopilot protection for your WordPress against malicious URL requests.
NoFollow Free removes the "nofollow" tag from your WordPress blog's comments with a lot of custom options and provides the option to insert a "NoFollo
Grants or denies access to a list of IP addresses
Improves the security of the login page against brute-force attacks. Records every attempts to login. Easily block an IP address.
Gatekeeper allows administrators to take a WordPress site offline while leaving it accessible to authorized users for maintenance, testing, etc.
Extend Visitor Maps and Who's Online with extra features, such as IP and referer banning. Display the referring host name and search string.
Malware removal and security plugin. Periodically perform a full scan for malware, breaches security analysis and check if the domain is in blacklist.
Prevent User Registration Spam, and Track New User IP address
Protect your site against bad bots by trapping them in a virtual blackhole.
The WP Spam Blacklister is a simple spam-prevention plugin that adds the IP address of a marked spam post on WordPress' comments blacklist.
CloudFlare Threat Management allows you to manage all banning, unbanning, and clearing of IP addresses across your entire CloudFlare account.
Automatic updating of the comment blacklist in WordPress with antispam keys from GitHub.
WP-BlackCheck is an Anti-Spam Solution for WordPress blocking spam using local detection and a centralized Blacklist Service.
Your Jetpack, Controlled.
Plugin tool for assembling lists of IP addresses, emails, and URLs from spam comments.