--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-07-07T00:00:00Z dns-udp-queries-received-ipv4: 4296752728 dns-udp-queries-received-ipv6: 523780661 dns-tcp-queries-received-ipv4: 140377451 dns-tcp-queries-received-ipv6: 70307142 dns-udp-responses-sent-ipv4: 4287283884 dns-udp-responses-sent-ipv6: 523725356 dns-tcp-responses-sent-ipv4: 144498394 dns-tcp-responses-sent-ipv6: 72613829