Options: Show command Colorize output Stats Trace Sort alphabetically Short No recursive Only first nameserver Compare output Save to file Show IP geolocation DNSSEC
. 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. . 518400 IN NS j.root-servers.net. . 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. . 518400 IN NS b.root-servers.net. . 518400 IN NS c.root-servers.net. ;; Received 228 bytes from 192.5.6.30#53(192.5.6.30) in 38 ms com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS j.gtld-servers.net. com. 172800 IN NS m.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS e.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. ;; Received 490 bytes from 192.36.148.17#53(192.36.148.17) in 85 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.41.162.30#53(192.41.162.30) in 30 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 185.89.218.12#53(185.89.218.12) in 21 ms
. 518400 IN NS j.root-servers.net. . 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. . 518400 IN NS b.root-servers.net. . 518400 IN NS c.root-servers.net. . 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. ;; Received 228 bytes from 192.43.172.30#53(192.43.172.30) in 58 ms com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS e.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS f.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 m.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. ;; Received 490 bytes from 192.112.36.4#53(192.112.36.4) in 46 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.33.14.30#53(192.33.14.30) in 59 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 185.89.219.12#53(185.89.219.12) in 1 ms
. 518400 IN NS b.root-servers.net. . 518400 IN NS c.root-servers.net. . 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. . 518400 IN NS j.root-servers.net. . 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. ;; Received 228 bytes from 192.33.14.30#53(192.33.14.30) in 82 ms com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. com. 172800 IN NS m.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS e.gtld-servers.net. com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS j.gtld-servers.net. ;; Received 490 bytes from 202.12.27.33#53(202.12.27.33) in 129 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.55.83.30#53(192.55.83.30) in 32 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 185.89.218.12#53(185.89.218.12) in 15 ms
. 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. . 518400 IN NS b.root-servers.net. . 518400 IN NS c.root-servers.net. . 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. . 518400 IN NS j.root-servers.net. ;; Received 228 bytes from 192.42.93.30#53(192.42.93.30) in 57 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 490 bytes from 198.97.190.53#53(198.97.190.53) in 55 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.33.14.30#53(192.33.14.30) in 65 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 185.89.219.12#53(185.89.219.12) in 1 ms
. 518400 IN NS b.root-servers.net. . 518400 IN NS c.root-servers.net. . 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. . 518400 IN NS j.root-servers.net. . 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. ;; Received 228 bytes from 192.41.162.30#53(192.41.162.30) in 54 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 506 bytes from 199.9.14.201#53(199.9.14.201) in 54 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.31.80.30#53(192.31.80.30) in 15 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 129.134.31.12#53(129.134.31.12) in 22 ms
. 518400 IN NS b.root-servers.net. . 518400 IN NS c.root-servers.net. . 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. . 518400 IN NS j.root-servers.net. . 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. ;; Received 228 bytes from 192.52.178.30#53(192.52.178.30) in 55 ms ;; Truncated, retrying in TCP mode. com. 172800 IN NS e.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS j.gtld-servers.net. com. 172800 IN NS m.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. ;; Received 826 bytes from 192.58.128.30#53(192.58.128.30) in 37 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.26.92.30#53(192.26.92.30) in 15 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 129.134.30.12#53(129.134.30.12) in 2 ms
. 518400 IN NS c.root-servers.net. . 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. . 518400 IN NS j.root-servers.net. . 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. . 518400 IN NS b.root-servers.net. ;; Received 228 bytes from 192.55.83.30#53(192.55.83.30) in 56 ms ;; Truncated, retrying in TCP mode. com. 172800 IN NS l.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 a.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 m.gtld-servers.net. ;; Received 826 bytes from 192.5.5.241#53(192.5.5.241) in 35 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.26.92.30#53(192.26.92.30) in 12 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 129.134.31.12#53(129.134.31.12) in 21 ms
. 518400 IN NS j.root-servers.net. . 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. . 518400 IN NS b.root-servers.net. . 518400 IN NS c.root-servers.net. . 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. ;; Received 228 bytes from 192.35.51.30#53(192.35.51.30) in 57 ms ;; Truncated, retrying in TCP mode. com. 172800 IN NS e.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS j.gtld-servers.net. com. 172800 IN NS m.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. ;; Received 826 bytes from 192.58.128.30#53(192.58.128.30) in 36 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.42.93.30#53(192.42.93.30) in 33 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 185.89.218.12#53(185.89.218.12) in 22 ms
. 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. . 518400 IN NS j.root-servers.net. . 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. . 518400 IN NS b.root-servers.net. . 518400 IN NS c.root-servers.net. ;; Received 228 bytes from 192.48.79.30#53(192.48.79.30) in 54 ms com. 172800 IN NS m.gtld-servers.net. com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. com. 172800 IN NS e.gtld-servers.net. com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS j.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. ;; Received 490 bytes from 192.112.36.4#53(192.112.36.4) in 46 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.35.51.30#53(192.35.51.30) in 33 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 185.89.219.12#53(185.89.219.12) in 1 ms
. 518400 IN NS c.root-servers.net. . 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. . 518400 IN NS j.root-servers.net. . 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. . 518400 IN NS b.root-servers.net. ;; Received 228 bytes from 192.31.80.30#53(192.31.80.30) in 39 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 490 bytes from 199.7.83.42#53(199.7.83.42) in 34 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.35.51.30#53(192.35.51.30) in 33 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 129.134.31.12#53(129.134.31.12) in 21 ms
. 518400 IN NS c.root-servers.net. . 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. . 518400 IN NS j.root-servers.net. . 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. . 518400 IN NS b.root-servers.net. ;; Received 228 bytes from 192.12.94.30#53(192.12.94.30) in 37 ms com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS e.gtld-servers.net. com. 172800 IN NS j.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS m.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. ;; Received 490 bytes from 192.36.148.17#53(192.36.148.17) in 91 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.42.93.30#53(192.42.93.30) in 33 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 185.89.218.12#53(185.89.218.12) in 22 ms
. 518400 IN NS c.root-servers.net. . 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. . 518400 IN NS j.root-servers.net. . 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. . 518400 IN NS b.root-servers.net. ;; Received 228 bytes from 192.54.112.30#53(192.54.112.30) in 58 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 490 bytes from 198.97.190.53#53(198.97.190.53) in 71 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.33.14.30#53(192.33.14.30) in 58 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 129.134.31.12#53(129.134.31.12) in 21 ms
. 518400 IN NS c.root-servers.net. . 518400 IN NS d.root-servers.net. . 518400 IN NS e.root-servers.net. . 518400 IN NS f.root-servers.net. . 518400 IN NS g.root-servers.net. . 518400 IN NS h.root-servers.net. . 518400 IN NS i.root-servers.net. . 518400 IN NS j.root-servers.net. . 518400 IN NS k.root-servers.net. . 518400 IN NS l.root-servers.net. . 518400 IN NS m.root-servers.net. . 518400 IN NS a.root-servers.net. . 518400 IN NS b.root-servers.net. ;; Received 228 bytes from 192.26.92.30#53(192.26.92.30) in 37 ms ;; Truncated, retrying in TCP mode. com. 172800 IN NS e.gtld-servers.net. com. 172800 IN NS b.gtld-servers.net. com. 172800 IN NS j.gtld-servers.net. com. 172800 IN NS m.gtld-servers.net. com. 172800 IN NS i.gtld-servers.net. com. 172800 IN NS f.gtld-servers.net. com. 172800 IN NS a.gtld-servers.net. com. 172800 IN NS g.gtld-servers.net. com. 172800 IN NS h.gtld-servers.net. com. 172800 IN NS l.gtld-servers.net. com. 172800 IN NS k.gtld-servers.net. com. 172800 IN NS c.gtld-servers.net. com. 172800 IN NS d.gtld-servers.net. ;; Received 826 bytes from 198.41.0.4#53(198.41.0.4) in 58 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. ;; Received 273 bytes from 192.26.92.30#53(192.26.92.30) in 13 ms facebook.com. 172800 IN NS a.ns.facebook.com. facebook.com. 172800 IN NS d.ns.facebook.com. facebook.com. 172800 IN NS b.ns.facebook.com. facebook.com. 172800 IN NS c.ns.facebook.com. ;; Received 273 bytes from 129.134.31.12#53(129.134.31.12) in 26 ms