--- service: j.root-servers.net start-period: '2015-05-30T00:00:00Z' end-period: '2015-05-30T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3016381894 dns-udp-queries-received-ipv6: 279290033 dns-tcp-queries-received-ipv4: 28285257 dns-tcp-queries-received-ipv6: 6704279 dns-udp-responses-sent-ipv4: 2956702493 dns-udp-responses-sent-ipv6: 279163139 dns-tcp-responses-sent-ipv4: 27595183 dns-tcp-responses-sent-ipv6: 4660462