--- service: h.root-servers.net metric: traffic-volume start-period: '2015-06-14T00:00:00Z' end-period: '2015-06-14T23:59:59Z' dns-udp-queries-received-ipv4: 925288161 dns-udp-queries-received-ipv6: 81988501 dns-tcp-queries-received-ipv4: 130159 dns-tcp-queries-received-ipv6: 51995 dns-udp-responses-sent-ipv4: 851779072 dns-udp-responses-sent-ipv6: 76256422 dns-tcp-responses-sent-ipv4: 40094 dns-tcp-responses-sent-ipv6: 35467