--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-01-01T00:00:00Z' dns-udp-queries-received-ipv4: 1824054215 dns-udp-queries-received-ipv6: 443270680 dns-tcp-queries-received-ipv4: 36537456 dns-tcp-queries-received-ipv6: 13658386 dns-udp-responses-sent-ipv4: 1822208468 dns-udp-responses-sent-ipv6: 443017474 dns-tcp-responses-sent-ipv4: 34259027 dns-tcp-responses-sent-ipv6: 12944524