`duongdh.com`

DNSSEC	⚠️ Not signed
A	113.161.52.181^{🇻🇳 VTN-1113.161.52.0/23 VNPT-Net}
		PTR	`static.vnpt.vn`
NS	`ns1.matbao.com` ⭐ ⚠️ Not in parent delegation
		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	`ns1.matbao.vn` ⚠️ Not in zone NS records
		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` ⚠️ Not in parent delegation
		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}
NS	`ns2.matbao.vn` ⚠️ Not in zone NS records
		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}
TXT	`v=spf1 include:zoho.com ~all`
SOA	`ns1.matbao.com`admin@matbao.com 2025-04-15 #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=1774598772

Same first word

duongdh.com

DNS History

6 records (5 active, 1 former)

●NSns1.matbao.com2018-05-15 → 2026-03-27 · 2 obs

● 2018-05-15 14:57:52
● 2026-03-27 08:27:30

●NSns1.matbao.vn2026-03-27 → 2026-03-27 · 2 obs

○ 2018-05-15 14:57:52
● 2026-03-27 08:27:30

●NSns2.matbao.com2018-05-15 → 2026-03-27 · 2 obs

● 2018-05-15 14:57:52
● 2026-03-27 08:27:30

●NSns2.matbao.vn2026-03-27 → 2026-03-27 · 2 obs

○ 2018-05-15 14:57:52
● 2026-03-27 08:27:30

●A113.161.52.1812026-03-27 → 2026-03-27 · 2 obs

○ 2018-05-15 14:58:28
● 2026-03-27 08:27:30

○A124.158.13.352018-05-15 → 2018-05-15 · 3 obs

● 2018-05-15 14:57:52
● 2018-05-15 14:58:28
○ 2026-03-27 08:27:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
duongdh.com	ns1.matbao.vn, ns2.matbao.vn	-

✅ Authoritative Response

Server:35.198.203.127

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duongdh.com (unsigned zone)

⏱️ Timing

Total: 1639ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`113.161.52.181`
NS	2	`ns1.matbao.com, ns2.matbao.com`
TXT	1	`v=spf1 include:zoho.com ~all`
SOA	1	`ns1.matbao.com admin.matbao.com`

Analysis

IP Addresses

duongdh.com points to a single IP address: 113.161.52.181.

Name Servers

duongdh.com is delegated to four name servers: ns1.matbao.com, ns2.matbao.com, ns1.matbao.vn and ns2.matbao.vn.

duongdh.com at least partially shares name servers with other domains, for example 77.1.78.112.in-addr.arpa, scigroup.vn, otovn.vn, bigland.vn and nhathuochoangliem.vn.

these name servers are commonly used alongside ns-bak.matbao.com name servers.

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 ns1.matbao.vn 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; The host name ns2.matbao.vn points to 35.198.203.127 and 103.138.89.11.

Host names that point to 13.250.228.99: ns1.matbao.com and ns1.matbao.vn.

Host names that point to 103.110.128.60: ns1.matbao.com and ns1.matbao.vn.

Host names that point to 35.198.203.127: ns2.matbao.com and ns2.matbao.vn.

Host names that point to 103.138.89.11: ns2.matbao.com and ns2.matbao.vn.

duongdh.com - robtex.com

duongdh.com

com