This plugin hasn’t been tested with the latest 3 major releases of WordPress. It may no longer be maintained or supported and may have compatibility issues when used with more recent versions of WordPress.

No Duplicate Comments


Deprecated Prevent visitors from leaving duplicate comments/pingbacks/trackbacks to a post.

NOTE: This plugin is no longer necessary as of WordPress 2.0 as the issue has been fixed in WordPress. Simultaneous to the plugin’s release, I submitted the problem the plugin addressed as a bug, in trac ticket #1262, which was then fixed in changeset #2561


  1. This plugin has been deprecated and is no longer supported. It only works for versions of WordPress older than 2.0, none of which should be in use any longer.

Contributors & Developers

“No Duplicate Comments” is open source software. The following people have contributed to this plugin.