--- service: h.root-servers.net metric: traffic-volume start-period: '2015-05-30T00:00:00Z' end-period: '2015-05-30T23:59:59Z' dns-udp-queries-received-ipv4: 874118471 dns-udp-queries-received-ipv6: 82512698 dns-tcp-queries-received-ipv4: 112387 dns-tcp-queries-received-ipv6: 52896 dns-udp-responses-sent-ipv4: 811065487 dns-udp-responses-sent-ipv6: 76212989 dns-tcp-responses-sent-ipv4: 39409 dns-tcp-responses-sent-ipv6: 35980