`thuvientructuyen.com`

DNSSEC	⚠️ Not signed
A	103.226.251.100^{🇻🇳 VNPT-AS-VN103.226.248.0/22 VNPT-Net}
NS	`ns1.matbao.com` ⭐
		A	13.250.228.99^{🇸🇬 Amazon13.250.0.0/15 EC2 SIN prefix}
			PTR	`ec2-13-250-228-99.ap-southeast-1.compute.amazonaws.com`
		A	103.110.128.60^{🇻🇳 AXYS-VN103.110.128.0/23}
NS	`ns2.matbao.com`
		A	35.198.203.127^{🇸🇬 Google35.198.192.0/20}
			PTR	`127.203.198.35.bc.googleusercontent.com`
		A	103.138.89.11^{🇻🇳 VNPT-AS-VN103.138.88.0/23 VNPT-NET}
MX	`ssl.emailserver.vn` ⭐
		A	203.171.31.205^{🇻🇳 CMC-1203.171.31.0/24 CMCTELECOM-VN}
			PTR	`static.cmcti.vn`
TXT	`v=spf1 mx include:emailserver.vn -all`
SOA	`ns1.matbao.com`admin@matbao.com 2025-12-17 #1

`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=1778159931

Subdomains

www.thuvientructuyen.com

Same first word

thuvientructuyen.com

thuvientructuyen.vn

thuvientructuyen.edu.vn

DNS History

12 records (4 active, 8 former)

○NSns1.itsyourdomain.com2008-03-13 → 2008-03-13 · 3 obs

● 2008-03-13 05:45:52
○ 2015-08-21 11:51:14
○ 2026-05-07 13:36:58

●NSns1.matbao.com2026-05-01 → 2026-05-07 · 3 obs

○ 2019-12-29 08:00:12
● 2026-05-01 10:15:10
● 2026-05-07 13:36:58

○NSns2.itsyourdomain.com2008-03-13 → 2008-03-13 · 3 obs

● 2008-03-13 05:45:52
○ 2015-08-21 11:51:14
○ 2026-05-07 13:36:58

●NSns2.matbao.com2026-05-01 → 2026-05-07 · 3 obs

○ 2019-12-29 08:00:12
● 2026-05-01 10:15:10
● 2026-05-07 13:36:58

○NSns29.domaincontrol.com2015-08-21 → 2019-12-29 · 5 obs

○ 2008-03-13 05:45:52
● 2015-08-21 11:51:14
● 2019-12-29 08:00:12
○ 2026-05-01 10:15:10
○ 2026-05-07 13:36:58

○NSns30.domaincontrol.com2015-08-21 → 2019-12-29 · 5 obs

○ 2008-03-13 05:45:52
● 2015-08-21 11:51:14
● 2019-12-29 08:00:12
○ 2026-05-01 10:15:10
○ 2026-05-07 13:36:58

○MXmailstore1.secureserver.net2015-08-21 → 2019-12-29 · 5 obs

○ 2008-03-13 05:45:52
● 2015-08-21 11:51:14
● 2019-12-29 08:00:12
○ 2026-05-01 10:15:10
○ 2026-05-07 13:36:58

○MXsmtp.secureserver.net2015-08-21 → 2019-12-29 · 5 obs

○ 2008-03-13 05:45:52
● 2015-08-21 11:51:14
● 2019-12-29 08:00:12
○ 2026-05-01 10:15:10
○ 2026-05-07 13:36:58

●MXssl.emailserver.vn2026-05-01 → 2026-05-07 · 3 obs

○ 2019-12-29 08:00:12
● 2026-05-01 10:15:10
● 2026-05-07 13:36:58

●A103.226.251.1002026-05-01 → 2026-05-07 · 3 obs

○ 2019-12-29 08:00:12
● 2026-05-01 10:15:10
● 2026-05-07 13:36:58

○A118.69.196.2182015-08-21 → 2019-12-29 · 5 obs

○ 2008-03-13 05:45:52
● 2015-08-21 11:51:14
● 2019-12-29 08:00:12
○ 2026-05-01 10:15:10
○ 2026-05-07 13:36:58

○A216.40.45.322008-03-13 → 2008-03-13 · 3 obs

● 2008-03-13 05:45:52
○ 2015-08-21 11:51:14
○ 2026-05-07 13:36:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
thuvientructuyen.com	ns1.matbao.com, ns2.matbao.com	4 records

✅ Authoritative Response

Server:103.138.89.11

NS records: ns1.matbao.com, ns2.matbao.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for thuvientructuyen.com (unsigned zone)

⏱️ Timing

Total: 771ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.226.251.100`
NS	2	`ns2.matbao.com, ns1.matbao.com`
MX	1	`ssl.emailserver.vn (pri: 10)`
TXT	1	`v=spf1 mx include:emailserver.vn -all`
SOA	1	`ns1.matbao.com admin.matbao.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.matbao.com, ns1.matbao.com, ns2.matbao.com...)

Analysis

Hierarchy

thuvientructuyen.com is the parent of www.thuvientructuyen.com.

IP Addresses

thuvientructuyen.com points to IP number 103.226.251.100.

Other host names, for instance, hocdoc.vn share IP numbers with thuvientructuyen.com.

Name Servers

thuvientructuyen.com is delegated to two name servers: ns1.matbao.com and ns2.matbao.com.

thuvientructuyen.com uses the same name server setup as other domains such as dulichdaibang.info, knight.com.vn, kienthucnhanong.vn, alkanacoating.com and simthantai.com.

thuvientructuyen.com shares name servers with other domains at least partially, for example ngukimdinhvang.com, 2learner.edu.vn, phuvinh.com, bplusfurniture.com.vn and visacenter.vn.

these name servers are commonly paired with ns1.matbao.vn, ns2.matbao.vn, ns-bak.matbao.com, ns1.digipowerdns.com, ns2.digipowerdns.com, ns3.digipowerdns.com and ns4.digipowerdns.com.

Host names with two IP numbers:

ns1.matbao.com points to 13.250.228.99 and 103.110.128.60; ns2.matbao.com points to 35.198.203.127 and 103.138.89.11.

Mail Servers

thuvientructuyen.com is handled by a single mail server, ssl.emailserver.vn.

thuvientructuyen.com shares the same mail server setup as other domains, for instance thaithiennam.vn, bvdkquangngai.vn, nhakhoaquynhgiang.vn, dacsanthanhphuong.vn and chuyennhalinen.vn.

ssl.emailserver.vn points to a single IP: 203.171.31.205.

thuvientructuyen.com - robtex.com