/*
playback timings (ms):
  captures_list: 0.942
  exclusion.robots: 0.041
  exclusion.robots.policy: 0.025
  esindex: 0.014
  cdx.remote: 17.647
  LoadShardBlock: 94.034 (3)
  PetaboxLoader3.datanode: 182.973 (5)
  PetaboxLoader3.resolve: 182.429 (2)
  load_resource: 281.509
  loaddict: 109.467
*/