---
service: h.root-servers.net
metric: rcode-volume
start-period: '2016-04-21T00:00:00Z'
end-period: '2016-04-21T23:59:59Z'
rcodes:
  0: 823998491
  1: 880812
  16: 15
  2: 47
  3: 2292672123
  4: 1128882
  5: 39804
  9: 10