--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-06-23T00:00:00Z dns-udp-queries-received-ipv4: 4121896275 dns-udp-queries-received-ipv6: 533612284 dns-tcp-queries-received-ipv4: 136515824 dns-tcp-queries-received-ipv6: 68516061 dns-udp-responses-sent-ipv4: 4113372282 dns-udp-responses-sent-ipv6: 533567990 dns-tcp-responses-sent-ipv4: 140814523 dns-tcp-responses-sent-ipv6: 70708465