--- service: d.root-servers.net start-period: '2016-05-30T00:00:00Z' end-period: '2016-05-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4778483025 dns-udp-queries-received-ipv6: 748957313 dns-tcp-queries-received-ipv4: 32991653 dns-tcp-queries-received-ipv6: 706645 dns-udp-responses-sent-ipv4: 4763760243 dns-udp-responses-sent-ipv6: 748756060 dns-tcp-responses-sent-ipv4: 32971320 dns-tcp-responses-sent-ipv6: 706575