Trackback Validator Plugin
14 Jul 2005 5:46pm GMT Introduction The TrackBack Validator plugin for WordPress performs a simple but very effective test on all TrackBacks in order to stop spam. Legitimate TrackBacks are sent by people commenting on your weblog, accompanied by a URL that points to that commentary. Spam TrackBacks are accompanied by a URL that points to a pay-per-click affiliate website or other [...]