anchor.diff:  "843136","2014-06-10 19:47:58","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","true","",""
   "887751","2014-06-10 19:48:01","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","true","",""
   "815374","2014-06-10 19:48:09","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","false","",""
  -"827676","2014-06-10 22:48:27","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","TIMEOUT - page did not load","",""
  +"827676","2014-06-10 22:48:27","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","true","",""
   "826958","2014-06-11 07:57:40","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","true","",""
   "828386","2014-06-11 07:57:45","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","true","",""
   "843146","2014-06-11 07:57:47","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","true","",""
  
positive.code: "878232","2014-06-11 08:13:16","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","false","",""
  "878246","2014-06-11 08:13:21","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","false","",""
  "876357","2014-06-11 08:13:27","Mozilla/5.0 (Android; Mobile; rv:23.0) Gecko/23.0 Firefox/23.0","true","Economist not serving mobile optimized site to Firefox for Android",""
  "1001451","2014-06-11 08:13:32","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","true","",""
  "804729","2014-06-11 08:13:39","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","true","",""
  "968073","2014-06-11 08:13:46","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","false","",""
  "759729","2014-06-11 08:13:52","Mozilla/5.0 (Android; Mobile; rv:23.0) Gecko/23.0 Firefox/23.0","true","",""
  
negative.code: "717516","2014-06-11 08:12:19","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","false","",""
  "754404","2014-06-11 08:12:26","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","true","",""
  "966184","2014-06-11 08:12:29","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","false","",""
  "785374","2014-06-11 08:12:31","Mozilla/5.0 (Android; Mobile; rv:23.0) Gecko/23.0 Firefox/23.0","true","",""
  "791520","2014-06-11 08:12:32","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","true","",""
  "878132","2014-06-11 08:12:34","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","true","",""
  "867403","2014-06-11 08:12:40","Mozilla/5.0 (Mobile; rv:18.0) Gecko/18.0 Firefox/18.0","true","",""
  