--- service: h.root-servers.net metric: traffic-volume start-period: '2015-07-04T00:00:00Z' end-period: '2015-07-04T23:59:59Z' dns-udp-queries-received-ipv4: 595547001 dns-udp-queries-received-ipv6: 52608471 dns-tcp-queries-received-ipv4: 308824 dns-tcp-queries-received-ipv6: 27560 dns-udp-responses-sent-ipv4: 564823702 dns-udp-responses-sent-ipv6: 50520647 dns-tcp-responses-sent-ipv4: 189617 dns-tcp-responses-sent-ipv6: 18386