--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-07-22T00:00:00Z dns-udp-queries-received-ipv4: 4002228686 dns-udp-queries-received-ipv6: 499979918 dns-tcp-queries-received-ipv4: 146960608 dns-tcp-queries-received-ipv6: 73995916 dns-udp-responses-sent-ipv4: 3997521927 dns-udp-responses-sent-ipv6: 499855485 dns-tcp-responses-sent-ipv4: 151313824 dns-tcp-responses-sent-ipv6: 76263941