11 Most Used WordPress Trackbacks Plugins

Todd Lahman's comment spam blocking plugin that blocks automated spam with zero false positives.

All-in-one WordPress spam protection, with NO CAPTCHAs, challenge questions or other inconvenience to site visitors.

An admin interface to control the default comment and trackback settings on new posts, pages and custom post types.

Aggressive anti-spam plugin that eliminates comment spam, trackback spam, contact form spam and registration spam. Protects against malicious attacks.

Hides metabox controls on the write/edit post & page admin screens for each user role. Also controls autosave, trash time and saved revisions.

A utility plugin that runs database operations on your WP database to change settings and clean up unwanted trackbacks, pingbacks, and comments.

MP Spam Be Gone is the simplest, most effective Spam blocker.

Stops trackbacks and pingbacks from showing up as comments on posts.

Pingback Killer disables all of WordPress' pingback functionality.

Display your recent comments the way YOU like and use fantastic looking comments by default!

QPM adds page/post management links for one-click actions as drafting, private/public, opening/closing comments/trackbacks, trashing/deleting, etc