--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-05-10T00:00:00Z dns-udp-queries-received-ipv4: 4069566254 dns-udp-queries-received-ipv6: 394695938 dns-tcp-queries-received-ipv4: 115585338 dns-tcp-queries-received-ipv6: 61290610 dns-udp-responses-sent-ipv4: 4065671508 dns-udp-responses-sent-ipv6: 394613705 dns-tcp-responses-sent-ipv4: 116852863 dns-tcp-responses-sent-ipv6: 62350621