--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-05-20T00:00:00Z dns-udp-queries-received-ipv4: 4314950155 dns-udp-queries-received-ipv6: 444010149 dns-tcp-queries-received-ipv4: 130205890 dns-tcp-queries-received-ipv6: 70789779 dns-udp-responses-sent-ipv4: 4310971425 dns-udp-responses-sent-ipv6: 443971698 dns-tcp-responses-sent-ipv4: 133213936 dns-tcp-responses-sent-ipv6: 72946919