`viettructuyen.com`

DNSSEC	⚠️ Not signed
A	157.10.198.28^{DVS-AS-VN157.10.198.0/23 MEGAHOSTBIZ-VN}
NS	`nsbak.dotvndns.com` ⭐
		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.dotvndns.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.dotvndns.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`
MX	`mail.viettructuyen.com` ⭐
TXT	`v=spf1 include:_mail.viettructuyen.com ~all`
SOA	`nsbak.dotvndns.com`hostmaster@viettructuyen.com 2025-07-27 #22

`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=1778544541

Previously MX for

mail.viettructuyen.com

viettructuyen.com

Subdomains

mail.viettructuyen.com

Same first word

viettructuyen.com

DNS History

19 records (5 active, 14 former)

●NSns1.dotvndns.vn2018-06-08 → 2026-05-12 · 3 obs

○ 2015-11-09 20:52:04
● 2018-06-08 14:12:24
● 2026-05-12 00:21:50

○NSns1605.hostgator.com2015-06-30 → 2015-11-09 · 4 obs

● 2015-06-30 03:18:44
● 2015-11-09 20:52:04
○ 2018-06-08 14:12:24
○ 2026-05-12 00:21:50

○NSns1606.hostgator.com2015-06-30 → 2015-11-09 · 4 obs

● 2015-06-30 03:18:44
● 2015-11-09 20:52:04
○ 2018-06-08 14:12:24
○ 2026-05-12 00:21:50

●NSns2.dotvndns.vn2018-06-08 → 2026-05-12 · 3 obs

○ 2015-11-09 20:52:04
● 2018-06-08 14:12:24
● 2026-05-12 00:21:50

○NSns6265.hostgator.com2015-06-30 → 2015-11-09 · 4 obs

● 2015-06-30 03:18:44
● 2015-11-09 20:52:04
○ 2018-06-08 14:12:24
○ 2026-05-12 00:21:50

●NSnsbak.dotvndns.com2018-06-08 → 2026-05-12 · 3 obs

○ 2015-11-09 20:52:04
● 2018-06-08 14:12:24
● 2026-05-12 00:21:50

○MXalt1.aspmx.l.google.com2018-06-08 → 2018-06-08 · 4 obs

○ 2015-11-09 20:52:04
● 2018-06-08 14:12:24
○ 2026-03-16 08:32:06
○ 2026-05-12 00:21:50

○MXalt2.aspmx.l.google.com2018-06-08 → 2018-06-08 · 4 obs

○ 2015-11-09 20:52:04
● 2018-06-08 14:12:24
○ 2026-03-16 08:32:06
○ 2026-05-12 00:21:50

○MXaspmx.l.google.com2018-06-08 → 2018-06-08 · 4 obs

○ 2015-11-09 20:52:04
● 2018-06-08 14:12:24
○ 2026-03-16 08:32:06
○ 2026-05-12 00:21:50

○MXaspmx2.googlemail.com2018-06-08 → 2018-06-08 · 4 obs

○ 2015-11-09 20:52:04
● 2018-06-08 14:12:24
○ 2026-03-16 08:32:06
○ 2026-05-12 00:21:50

○MXaspmx3.googlemail.com2018-06-08 → 2018-06-08 · 4 obs

○ 2015-11-09 20:52:04
● 2018-06-08 14:12:24
○ 2026-03-16 08:32:06
○ 2026-05-12 00:21:50

○MXaspmx4.googlemail.com2018-06-08 → 2018-06-08 · 4 obs

○ 2015-11-09 20:52:04
● 2018-06-08 14:12:24
○ 2026-03-16 08:32:06
○ 2026-05-12 00:21:50

○MXaspmx5.googlemail.com2018-06-08 → 2018-06-08 · 4 obs

○ 2015-11-09 20:52:04
● 2018-06-08 14:12:24
○ 2026-03-16 08:32:06
○ 2026-05-12 00:21:50

●MXmail.viettructuyen.com2015-06-30 → 2026-05-12 · 5 obs

● 2015-06-30 03:18:44
● 2015-11-09 20:52:04
○ 2018-06-08 14:12:24
● 2026-03-16 08:32:06
● 2026-05-12 00:21:50

○MXviettructuyen.com2015-06-30 → 2015-11-09 · 4 obs

● 2015-06-30 03:18:44
● 2015-11-09 20:52:04
○ 2018-06-08 14:12:24
○ 2026-05-12 00:21:50

○A101.99.52.2052018-06-08 → 2018-06-08 · 4 obs

○ 2017-01-09 08:19:30
● 2018-06-08 14:12:24
○ 2026-03-16 08:32:06
○ 2026-05-12 00:21:50

●A157.10.198.282026-03-16 → 2026-05-12 · 3 obs

○ 2018-06-08 14:12:24
● 2026-03-16 08:32:06
● 2026-05-12 00:21:50

○A162.144.6.1462015-06-30 → 2015-11-09 · 4 obs

● 2015-06-30 03:18:44
● 2015-11-09 20:52:04
○ 2016-02-11 05:13:02
○ 2026-05-12 00:21:50

○A50.87.144.1692016-02-11 → 2017-01-09 · 5 obs

○ 2015-11-09 20:52:04
● 2016-02-11 05:13:02
● 2017-01-09 08:19:30
○ 2018-06-08 14:12:24
○ 2026-05-12 00:21:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
viettructuyen.com	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn	2 records

✅ Authoritative Response

Server:222.255.121.247

NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for viettructuyen.com (unsigned zone)

⏱️ Timing

Total: 1774ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`157.10.198.28`
NS	3	`ns2.dotvndns.vn, nsbak.dotvndns.com...`
MX	1	`mail.viettructuyen.com (pri: 15)`
TXT	1	`v=spf1 include:_mail.viettructuyen.com ~`
SOA	1	`nsbak.dotvndns.com hostmaster.viettructu`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)

Analysis

Hierarchy

viettructuyen.com is a parent of mail.viettructuyen.com.

IP Addresses

viettructuyen.com points to a single IP address: 157.10.198.28.

Other host names such as mail.sgo.vn, ketoantruong.sgo.vn and sgo.vn share IP numbers with viettructuyen.com.

Name Servers

viettructuyen.com is delegated to three name servers: nsbak.dotvndns.com, ns1.dotvndns.vn and ns2.dotvndns.vn.

At least part of the name servers for viettructuyen.com are shared with other domains, for instance hyundaigiaiphong.com.vn, huramedia.com, samaco.com.vn, gaohungcuc.com and zinca.com.vn.

These name servers are commonly used with ns1.pavietnam.vn, ns3.dotvndns.vn, ns2.pavietnam.vn and nsbak.pavietnam.net.

Host names with two IP numbers:

nsbak.dotvndns.com points to 2406:9c80::9000:302 and 112.213.89.22

ns1.dotvndns.vn points to 2406:9c80::66 and 112.213.89.3

ns2.dotvndns.vn points to 2406:9c80::9000:111 and 222.255.121.247

Mail Servers

The mail server for viettructuyen.com is mail.viettructuyen.com.

viettructuyen.com - robtex.com