--- service: j.root-servers.net start-period: '2015-05-23T00:00:00Z' end-period: '2015-05-23T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 2946766775 dns-udp-queries-received-ipv6: 247210750 dns-tcp-queries-received-ipv4: 31783948 dns-tcp-queries-received-ipv6: 5767278 dns-udp-responses-sent-ipv4: 2883396975 dns-udp-responses-sent-ipv6: 247139216 dns-tcp-responses-sent-ipv4: 31196355 dns-tcp-responses-sent-ipv6: 5974453