`duhocnhathan.com`

DNSSEC	⚠️ Not signed
A	163.223.13.156^{QPPF-VN163.223.12.0/23}
NS	`nsbak.pavietnam.net` ⭐
		A	2406:9c80::9000:302^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`nsbak.dotvndns.com`
		A	112.213.89.22^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns8922.dotvndns.vn`
NS	`ns1.pavietnam.vn`
		A	2406:9c80::66^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns1.dotvndns.vn`
		A	112.213.89.3^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns1.dotvndns.vn`
NS	`ns2.pavietnam.vn`
		A	2406:9c80::9000:111^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns2.dotvndns.vn`
		A	222.255.121.247^{🇻🇳 VDC222.255.121.0/24 VNPT}
			PTR	`static.vdc.vn`
			PTR	`static.vnpt.vn`
TXT	`google-site-verification=Bg7F9fHR46Ogl-CTuSIVBNaWlsi8os2uw0atkhjCM9E`
SOA	`nsbak.pavietnam.net`hostmaster@duhocnhathan.com 2026-03-23 #31

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1778533516

duhocnhathan.com

9 records (4 active, 5 former)

○NSns1.namebrightdns.com2016-12-14 → 2018-01-02 · 4 obs

● 2016-12-14 18:48:26
● 2018-01-02 13:37:30
○ 2026-03-28 02:12:14
○ 2026-05-11 21:18:24

●NSns1.pavietnam.vn2026-03-28 → 2026-05-11 · 3 obs

○ 2018-01-02 13:37:30
● 2026-03-28 02:12:14
● 2026-05-11 21:18:24

○NSns2.namebrightdns.com2016-12-14 → 2018-01-02 · 4 obs

● 2016-12-14 18:48:26
● 2018-01-02 13:37:30
○ 2026-03-28 02:12:14
○ 2026-05-11 21:18:24

●NSns2.pavietnam.vn2026-03-28 → 2026-05-11 · 3 obs

○ 2018-01-02 13:37:30
● 2026-03-28 02:12:14
● 2026-05-11 21:18:24

●NSnsbak.pavietnam.net2026-03-28 → 2026-05-11 · 3 obs

○ 2018-01-02 13:37:30
● 2026-03-28 02:12:14
● 2026-05-11 21:18:24

●A163.223.13.1562026-03-28 → 2026-05-11 · 3 obs

○ 2018-01-02 13:37:30
● 2026-03-28 02:12:14
● 2026-05-11 21:18:24

○A52.5.157.2202016-12-14 → 2016-12-14 · 3 obs

● 2016-12-14 18:48:26
○ 2018-01-02 13:37:30
○ 2026-05-11 21:18:24

○A54.84.53.382016-12-14 → 2016-12-14 · 3 obs

● 2016-12-14 18:48:26
○ 2018-01-02 13:37:30
○ 2026-05-11 21:18:24

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2016-12-14 → 2018-01-02 · 4 obs

● 2016-12-14 18:48:26
● 2018-01-02 13:37:30
○ 2026-03-28 02:12:14
○ 2026-05-11 21:18:24

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
duhocnhathan.com	nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn	-

Server:222.255.121.247

NS records: nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn

⚠️ Insecure (no DNSSEC)

No DS record for duhocnhathan.com (unsigned zone)

Total: 2639ms | Queries: -

Type	Count	Sample Data
A	1	`163.223.13.156`
NS	3	`ns1.pavietnam.vn, ns2.pavietnam.vn...`
TXT	1	`google-site-verification=Bg7F9fHR46Ogl-C`
SOA	1	`nsbak.pavietnam.net hostmaster.duhocnhat`

duhocnhathan.com points to a single IP address: 163.223.13.156.

duhocnhathan.com is delegated to three name servers: nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn.

At least part of the name servers for duhocnhathan.com are shared with other domains, for instance isystem.vn, mitsuthuduc.com.vn, ctnindustries.com, betong620chauthoi.com and tfa.vn.