--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-06-28T00:00:00Z dns-udp-queries-received-ipv4: 4083835085 dns-udp-queries-received-ipv6: 540559564 dns-tcp-queries-received-ipv4: 133203112 dns-tcp-queries-received-ipv6: 74444723 dns-udp-responses-sent-ipv4: 4075640835 dns-udp-responses-sent-ipv6: 540511493 dns-tcp-responses-sent-ipv4: 137307554 dns-tcp-responses-sent-ipv6: 76685061