--- service: j.root-servers.net start-period: '2015-07-25T00:00:00Z' end-period: '2015-07-25T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3977443651 dns-udp-queries-received-ipv6: 272801945 dns-tcp-queries-received-ipv4: 32299876 dns-tcp-queries-received-ipv6: 25754395 dns-udp-responses-sent-ipv4: 3377605695 dns-udp-responses-sent-ipv6: 273005232 dns-tcp-responses-sent-ipv4: 31803629 dns-tcp-responses-sent-ipv6: 29868945