--- service: d.root-servers.net start-period: '2016-05-09T00:00:00Z' end-period: '2016-05-09T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4212568530 dns-udp-queries-received-ipv6: 673898697 dns-tcp-queries-received-ipv4: 35711858 dns-tcp-queries-received-ipv6: 606045 dns-udp-responses-sent-ipv4: 4194139519 dns-udp-responses-sent-ipv6: 673652270 dns-tcp-responses-sent-ipv4: 35619294 dns-tcp-responses-sent-ipv6: 605756