--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-01-16T00:00:00Z dns-udp-queries-received-ipv4: 3750691899 dns-udp-queries-received-ipv6: 848870003 dns-tcp-queries-received-ipv4: 114175130 dns-tcp-queries-received-ipv6: 71035011 dns-udp-responses-sent-ipv4: 3747549178 dns-udp-responses-sent-ipv6: 848700052 dns-tcp-responses-sent-ipv4: 92967766 dns-tcp-responses-sent-ipv6: 73158712