--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-03-17T00:00:00Z dns-udp-queries-received-ipv4: 3314846695 dns-udp-queries-received-ipv6: 783129031 dns-tcp-queries-received-ipv4: 93142389 dns-tcp-queries-received-ipv6: 47864872 dns-udp-responses-sent-ipv4: 3308464433 dns-udp-responses-sent-ipv6: 782937788 dns-tcp-responses-sent-ipv4: 70853984 dns-tcp-responses-sent-ipv6: 49406347