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. 515385 IN NS a.root-servers.net. . 515385 IN NS b.root-servers.net. . 515385 IN NS c.root-servers.net. . 515385 IN NS d.root-servers.net. . 515385 IN NS e.root-servers.net. . 515385 IN NS f.root-servers.net. . 515385 IN NS g.root-servers.net. . 515385 IN NS h.root-servers.net. . 515385 IN NS i.root-servers.net. . 515385 IN NS j.root-servers.net. . 515385 IN NS k.root-servers.net. . 515385 IN NS l.root-servers.net. . 515385 IN NS m.root-servers.net. ;; Received 228 bytes from 1.1.1.1#53(1.1.1.1) in 29 ms com. 172800 IN NS a.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. com. 172800 IN NS e.gtld-servers.net. com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS j.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS m.gtld-servers.net. ;; Received 489 bytes from 192.58.128.30#53(192.58.128.30) in 23 ms example.com. 172800 IN NS a.iana-servers.net. example.com. 172800 IN NS b.iana-servers.net. ;; Received 77 bytes from 192.43.172.30#53(192.43.172.30) in 48 ms example.com. 86400 IN NS a.iana-servers.net. example.com. 86400 IN NS b.iana-servers.net. ;; Received 77 bytes from 199.43.133.53#53(199.43.133.53) in 22 ms