--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-06-05T00:00:00Z dns-udp-queries-received-ipv4: 3682179797 dns-udp-queries-received-ipv6: 405626531 dns-tcp-queries-received-ipv4: 121396044 dns-tcp-queries-received-ipv6: 68399155 dns-udp-responses-sent-ipv4: 3678157801 dns-udp-responses-sent-ipv6: 405574310 dns-tcp-responses-sent-ipv4: 124573066 dns-tcp-responses-sent-ipv6: 70713861