--- service: h.root-servers.net metric: traffic-volume start-period: '2015-06-20T00:00:00Z' end-period: '2015-06-20T23:59:59Z' dns-udp-queries-received-ipv4: 859038394 dns-udp-queries-received-ipv6: 88062411 dns-tcp-queries-received-ipv4: 125557 dns-tcp-queries-received-ipv6: 54588 dns-udp-responses-sent-ipv4: 825245375 dns-udp-responses-sent-ipv6: 82115385 dns-tcp-responses-sent-ipv4: 36938 dns-tcp-responses-sent-ipv6: 36514