--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-06-04T00:00:00Z dns-udp-queries-received-ipv4: 4076064601 dns-udp-queries-received-ipv6: 396792111 dns-tcp-queries-received-ipv4: 123650684 dns-tcp-queries-received-ipv6: 66886674 dns-udp-responses-sent-ipv4: 4073318575 dns-udp-responses-sent-ipv6: 396743902 dns-tcp-responses-sent-ipv4: 126611044 dns-tcp-responses-sent-ipv6: 68972047