--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-05-01T00:00:00Z dns-udp-queries-received-ipv4: 2634551486 dns-udp-queries-received-ipv6: 200008901 dns-tcp-queries-received-ipv4: 94148879 dns-tcp-queries-received-ipv6: 55407185 dns-udp-responses-sent-ipv4: 2632814427 dns-udp-responses-sent-ipv6: 200008641 dns-tcp-responses-sent-ipv4: 97128865 dns-tcp-responses-sent-ipv6: 57660113