`congngheduoc.com`

DNSSEC	🔒 Signed (DS record present)
A	139.180.156.224^{🇸🇬 AS-VULTR139.180.128.0/19 The Constant Company, LLC 319 CLEMATIS ST Suite 900}
		PTR	`139.180.156.224.vultrusercontent.com`
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}
SOA	`ns1.matbao.com`admin@matbao.com 2025-04-27 #2

`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=1777405031

Same first word

congngheduoc.com

DNS History

11 records (3 active, 8 former)

○NSdns1.registrar-servers.com2019-12-29 → 2019-12-29 · 3 obs

● 2019-12-29 10:50:36
○ 2026-03-13 11:15:52
○ 2026-04-28 19:45:16

○NSdns2.registrar-servers.com2019-12-29 → 2019-12-29 · 3 obs

● 2019-12-29 10:50:36
○ 2026-03-13 11:15:52
○ 2026-04-28 19:45:16

●NSns1.matbao.com2026-03-13 → 2026-04-28 · 3 obs

○ 2019-12-29 10:50:36
● 2026-03-13 11:15:52
● 2026-04-28 19:45:16

●NSns2.matbao.com2026-03-13 → 2026-04-28 · 3 obs

○ 2019-12-29 10:50:36
● 2026-03-13 11:15:52
● 2026-04-28 19:45:16

○MXeforward1.registrar-servers.com2019-12-29 → 2019-12-29 · 3 obs

● 2019-12-29 10:50:36
○ 2026-03-13 11:15:52
○ 2026-04-28 19:45:16

○MXeforward2.registrar-servers.com2019-12-29 → 2019-12-29 · 3 obs

● 2019-12-29 10:50:36
○ 2026-03-13 11:15:52
○ 2026-04-28 19:45:16

○MXeforward3.registrar-servers.com2019-12-29 → 2019-12-29 · 3 obs

● 2019-12-29 10:50:36
○ 2026-03-13 11:15:52
○ 2026-04-28 19:45:16

○MXeforward4.registrar-servers.com2019-12-29 → 2019-12-29 · 3 obs

● 2019-12-29 10:50:36
○ 2026-03-13 11:15:52
○ 2026-04-28 19:45:16

○MXeforward5.registrar-servers.com2019-12-29 → 2019-12-29 · 3 obs

● 2019-12-29 10:50:36
○ 2026-03-13 11:15:52
○ 2026-04-28 19:45:16

●A139.180.156.2242026-03-13 → 2026-04-28 · 3 obs

○ 2019-12-29 10:50:36
● 2026-03-13 11:15:52
● 2026-04-28 19:45:16

○A192.64.119.2042019-12-29 → 2019-12-29 · 3 obs

● 2019-12-29 10:50:36
○ 2026-03-13 11:15:52
○ 2026-04-28 19:45:16

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net...	-
congngheduoc.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

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1282ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`139.180.156.224`
NS	2	`ns2.matbao.com, ns1.matbao.com`
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

IP Addresses

congngheduoc.com resolves to one IP number: 139.180.156.224.

Other host names such as duoctrangvinh.vn and chothuoc247.vn share IP numbers with congngheduoc.com.

Name Servers

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

congngheduoc.com shares the same name server setup as other domains, for instance kase.edu.vn, vinacreations.com, eurowindow.net, innhanhlaylien.com and taichinhcong.com.

congngheduoc.com at least partially shares name servers with other domains, for instance gamemienphi.com.vn, paqvn.com, canvanphu.com, biomedic.com.vn and vinafat.net.

These name servers are commonly used alongside ns1.matbao.vn, ns2.matbao.vn, ns-bak.matbao.com, ns3.matbao.com, ns4.matbao.com, ns1.digipowerdns.com and ns2.digipowerdns.com.

Host names with two IP numbers:

The host name ns1.matbao.com points to 13.250.228.99 and 103.110.128.60; the host name ns2.matbao.com points to 35.198.203.127 and 103.138.89.11.

congngheduoc.com - robtex.com