Adds Whitelist and Blacklist options for Trackbacks and Pingbacks

Dead-Letter.Email for Wordpress. Dead simple disposable email check that just works.

Shortcode Whitelist for bbPress, BuddyPress and WordPress Comments.

Limits access to the site to people on an allowed list of IP addresses.

Limit Attempts Booster is a Wordpress plugin which provides high security and limits your Wordpress access. It also safes from Brute Force Attacks.

Simply restrict login to your WordPress for the specific IP addresses or users with secret link.

Restricts registration to email addresses listed within the options file. Assumes WP native registration is turned off.

Protect your WordPress site from unwanted registrations and spam with custom blacklist and whitelist rules.

This plugin adds creates a whitelist of shortcode tags that can be applied to comments, bbPress and BuddyPress.

A Plugin That only allows whitelisted IP's, or optionally whitelisted browsers, to access wp-login, or optionally wp-admin. This plugin also does Not effect front-end login plugins.

Limit access to the site to those with a cookie token. Visitors without the cookie see a customisable "coming soon" style of page.

The Whitelist plugin enables you to open your website to a set of users and blocks everyone else. You can enter users by their email address into the Whitelist tab of the plugin. Once done, only users on the list would be able to visit your site.

Blocks malicious IP Addresses, Spammers and Hackers from accessing page without compromising the performance of your WordPress Website.

Enables the use of Albus whitelisting plugin for Bukkit (Minecraft) on WordPress installations

Add a simple and elegant banner that will display to visitors who have ad blocking software installed, advising them to white list your site.