--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-06-29T00:00:00Z dns-udp-queries-received-ipv4: 4114680433 dns-udp-queries-received-ipv6: 539076702 dns-tcp-queries-received-ipv4: 130165596 dns-tcp-queries-received-ipv6: 71331729 dns-udp-responses-sent-ipv4: 4106676263 dns-udp-responses-sent-ipv6: 538992618 dns-tcp-responses-sent-ipv4: 134215612 dns-tcp-responses-sent-ipv6: 73444128