--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-07-19T00:00:00Z dns-udp-queries-received-ipv4: 3916733656 dns-udp-queries-received-ipv6: 497570438 dns-tcp-queries-received-ipv4: 142986781 dns-tcp-queries-received-ipv6: 73100467 dns-udp-responses-sent-ipv4: 3912354910 dns-udp-responses-sent-ipv6: 497518504 dns-tcp-responses-sent-ipv4: 146319589 dns-tcp-responses-sent-ipv6: 75028531