$ dig +trace ctu.fletsnet.com

; <<>> DiG 9.7.3-P3 <<>> +trace ctu.fletsnet.com
;; global options: +cmd
.			237359	IN	NS	f.root-servers.net.
.			237359	IN	NS	i.root-servers.net.
.			237359	IN	NS	e.root-servers.net.
.			237359	IN	NS	d.root-servers.net.
.			237359	IN	NS	l.root-servers.net.
.			237359	IN	NS	k.root-servers.net.
.			237359	IN	NS	j.root-servers.net.
.			237359	IN	NS	a.root-servers.net.
.			237359	IN	NS	b.root-servers.net.
.			237359	IN	NS	m.root-servers.net.
.			237359	IN	NS	g.root-servers.net.
.			237359	IN	NS	h.root-servers.net.
.			237359	IN	NS	c.root-servers.net.
;; Received 512 bytes from 192.168.13.1#53(192.168.13.1) in 204 ms

com.			172800	IN	NS	b.gtld-servers.net.
com.			172800	IN	NS	h.gtld-servers.net.
com.			172800	IN	NS	a.gtld-servers.net.
com.			172800	IN	NS	k.gtld-servers.net.
com.			172800	IN	NS	i.gtld-servers.net.
com.			172800	IN	NS	d.gtld-servers.net.
com.			172800	IN	NS	c.gtld-servers.net.
com.			172800	IN	NS	j.gtld-servers.net.
com.			172800	IN	NS	e.gtld-servers.net.
com.			172800	IN	NS	l.gtld-servers.net.
com.			172800	IN	NS	f.gtld-servers.net.
com.			172800	IN	NS	g.gtld-servers.net.
com.			172800	IN	NS	m.gtld-servers.net.
;; Received 494 bytes from 192.228.79.201#53(b.root-servers.net) in 240 ms

fletsnet.com.		172800	IN	NS	b203.psi-japan.net.
fletsnet.com.		172800	IN	NS	b204.psi-japan.net.
;; Received 117 bytes from 192.43.172.30#53(i.gtld-servers.net) in 269 ms

ctu.fletsnet.com.	36000	IN	A	221.249.12.35
;; Received 50 bytes from 221.249.12.39#53(b203.psi-japan.net) in 159 ms