--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-06-08T00:00:00Z dns-udp-queries-received-ipv4: 4165523058 dns-udp-queries-received-ipv6: 487498494 dns-tcp-queries-received-ipv4: 125146743 dns-tcp-queries-received-ipv6: 70417482 dns-udp-responses-sent-ipv4: 4161748988 dns-udp-responses-sent-ipv6: 487440199 dns-tcp-responses-sent-ipv4: 128368992 dns-tcp-responses-sent-ipv6: 72588304