--- service: j.root-servers.net start-period: '2017-01-17T00:00:00Z' end-period: '2017-01-17T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6440717996 dns-udp-queries-received-ipv6: 641345409 dns-tcp-queries-received-ipv4: 173281314 dns-tcp-queries-received-ipv6: 15105970 dns-udp-responses-sent-ipv4: 6229449925 dns-udp-responses-sent-ipv6: 645461022 dns-tcp-responses-sent-ipv4: 162683167 dns-tcp-responses-sent-ipv6: 15212168