/*
playback timings (ms):
  captures_list: 293.6
  exclusion.robots: 0.091
  exclusion.robots.policy: 0.083
  cdx.remote: 0.066
  esindex: 0.008
  LoadShardBlock: 239.704 (3)
  PetaboxLoader3.datanode: 116.062 (4)
  CDXLines.iter: 21.078 (3)
  load_resource: 199.55
  PetaboxLoader3.resolve: 153.105
*/