title: What does "?ref=ts" mean in a Facebook application URL?
body: <p>When Facebook drives traffic to an application, it often append <code>&amp;ref=whatever</code> to the query string. This is useful for figuring out which integration points are working or not. I've figured out what some of these mean. For example:</p>
  
  <p>ref=bookmarks - the user clicked on a bookmark.</p>
  
  <p>ref=game_my_recent - the user clicked on the upper portion of the games dashboard.</p>
  
  <p>What does "ref=ts" mean? It accounts for a ton of traffic. I've viewed source on pages all over common Facebook pages and cannot find a match for ant piece of content generated by any of my applications. </p>
  
  <p>Same question, posted by me on the Facebook developer forum:
  <a href="http://forum.developers.facebook.com/viewtopic.php?id=54866" rel="noreferrer">http://forum.developers.facebook.com/viewtopic.php?id=54866</a></p>