Title: pzriddle's Replies | WordPress.org

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# pzriddle

  [  ](https://wordpress.org/support/users/pzriddle/)

 *   [Profile](https://wordpress.org/support/users/pzriddle/)
 *   [Topics Started](https://wordpress.org/support/users/pzriddle/topics/)
 *   [Replies Created](https://wordpress.org/support/users/pzriddle/replies/)
 *   [Reviews Written](https://wordpress.org/support/users/pzriddle/reviews/)
 *   [Topics Replied To](https://wordpress.org/support/users/pzriddle/replied-to/)
 *   [Engagements](https://wordpress.org/support/users/pzriddle/engagements/)
 *   [Favorites](https://wordpress.org/support/users/pzriddle/favorites/)

 Search replies:

## Forum Replies Created

Viewing 2 replies - 1 through 2 (of 2 total)

 *   Forum: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
   
   In reply to: [Trackback Spam](https://wordpress.org/support/topic/trackback-spam/)
 *  [pzriddle](https://wordpress.org/support/users/pzriddle/)
 * (@pzriddle)
 * [20 years, 8 months ago](https://wordpress.org/support/topic/trackback-spam/page/3/#post-125493)
 * Note that a couple of researchers at Rice University have released a Trackback
   spam blocker plugin which uses a different approach: their [Trackback Validator Plugin](http://idli.cs.rice.edu/~dsandler/trackback/trackback-validator-plugin/)
   checks to make sure that the sites which send you Trackback pings really do link
   to you, a test that most Trackback spammers fail.
 *   Forum: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
   
   In reply to: [Trackback Problem](https://wordpress.org/support/topic/trackback-problem/)
 *  [pzriddle](https://wordpress.org/support/users/pzriddle/)
 * (@pzriddle)
 * [20 years, 8 months ago](https://wordpress.org/support/topic/trackback-problem/#post-152495)
 * A clarification for people who are as confused as I’ve been, if I’ve got this
   right:
 * TrackBack doesn’t have to be manual. It has a well-defined method for auto-discovery
   of TrackBack URLs. However, at this time WordPress doesn’t implement TrackBack’s
   auto-discovery protocol.
 * That has led to lots of misleading statements like “PingBack is automatic while
   TrackBack is manual”: that’s true in a WordPress context but not in general.
 * At least I think that’s the case. Please correct me if I’m wrong!

Viewing 2 replies - 1 through 2 (of 2 total)