--- service: d.root-servers.net start-period: '2016-05-23T00:00:00Z' end-period: '2016-05-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5898885215 dns-udp-queries-received-ipv6: 707666820 dns-tcp-queries-received-ipv4: 33869286 dns-tcp-queries-received-ipv6: 726599 dns-udp-responses-sent-ipv4: 5882542086 dns-udp-responses-sent-ipv6: 707416075 dns-tcp-responses-sent-ipv4: 33819473 dns-tcp-responses-sent-ipv6: 726534