--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-06-15T00:00:00Z' dns-udp-queries-received-ipv4: 2893282007 dns-udp-queries-received-ipv6: 796981921 dns-tcp-queries-received-ipv4: 65006463 dns-tcp-queries-received-ipv6: 17417739 dns-udp-responses-sent-ipv4: 2869539650 dns-udp-responses-sent-ipv6: 796416918 dns-tcp-responses-sent-ipv4: 63040140 dns-tcp-responses-sent-ipv6: 17078526