--- service: j.root-servers.net start-period: '2015-07-13T00:00:00Z' end-period: '2015-07-13T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4066879194 dns-udp-queries-received-ipv6: 288576296 dns-tcp-queries-received-ipv4: 36534812 dns-tcp-queries-received-ipv6: 24160035 dns-udp-responses-sent-ipv4: 3993218602 dns-udp-responses-sent-ipv6: 288439757 dns-tcp-responses-sent-ipv4: 35579673 dns-tcp-responses-sent-ipv6: 25420489