--- service: d.root-servers.net start-period: '2016-05-13T00:00:00Z' end-period: '2016-05-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7363726523 dns-udp-queries-received-ipv6: 734423129 dns-tcp-queries-received-ipv4: 33281888 dns-tcp-queries-received-ipv6: 638546 dns-udp-responses-sent-ipv4: 7334204538 dns-udp-responses-sent-ipv6: 733954004 dns-tcp-responses-sent-ipv4: 33112682 dns-tcp-responses-sent-ipv6: 638392