What Data Is Being Sent To/From Sites With Trackback Or Pingback?
For pingbacks, it seems only the linked page/post and the page/post it linked from are sent. Check out the pingback() function, specifically this line: $client->query( ‘pingback.ping’, $pagelinkedfrom, $pagelinkedto ); … where $client is an instance of WP_HTTP_IXR_Client. The query method uses IXR_Request to package up a simple XML document: <?xml version=”1.0″?> <methodCall> <methodName>pingback.ping</methodName> <params> <param> … Read more