--- service: j.root-servers.net start-period: '2017-02-18T00:00:00Z' end-period: '2017-02-18T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6197488297 dns-udp-queries-received-ipv6: 656428313 dns-tcp-queries-received-ipv4: 179901229 dns-tcp-queries-received-ipv6: 11228437 dns-udp-responses-sent-ipv4: 6085102655 dns-udp-responses-sent-ipv6: 659080256 dns-tcp-responses-sent-ipv4: 155206516 dns-tcp-responses-sent-ipv6: 11365177