--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-04-15T00:00:00Z dns-udp-queries-received-ipv4: 4052349017 dns-udp-queries-received-ipv6: 1075789772 dns-tcp-queries-received-ipv4: 126410899 dns-tcp-queries-received-ipv6: 72953784 dns-udp-responses-sent-ipv4: 4039413675 dns-udp-responses-sent-ipv6: 1075650147 dns-tcp-responses-sent-ipv4: 129417615 dns-tcp-responses-sent-ipv6: 75399829