`caohohungthinh.com`

DNSSEC	⚠️ Not signed
A	103.166.184.216^{🇻🇳 VNPT-AS-VN103.166.184.0/23 CLOUDFLY-VN}
		PTR	`103.166.184.216.cloudfly.vn`
NS	`a.misconfigured.dns.server.invalid` ⭐
NS	`ndns1.cosmotown.com`
		A	184.72.57.6^{🇺🇸 Amazon184.72.0.0/18 SFO prefix}
			PTR	`ec2-184-72-57-6.us-west-1.compute.amazonaws.com`
NS	`ndns2.cosmotown.com`
		A	54.177.47.228^{🇺🇸 Amazon54.176.0.0/15 EC2 SFO prefix}
			PTR	`ec2-54-177-47-228.us-west-1.compute.amazonaws.com`
SOA	`a.misconfigured.dns.server.invalid`hostmaster@caohohungthinh.com 2026-05-07 #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=1778544541

Same first word

caohohungthinh.com

DNS History

5 records (4 active, 1 former)

●NSa.misconfigured.dns.server.invalid2026-05-01 → 2026-05-12 · 2 obs

● 2026-05-01 14:44:52
● 2026-05-12 00:37:26

●NSndns1.cosmotown.com2026-05-01 → 2026-05-12 · 2 obs

● 2026-05-01 14:44:52
● 2026-05-12 00:37:26

●NSndns2.cosmotown.com2026-05-01 → 2026-05-12 · 2 obs

● 2026-05-01 14:44:52
● 2026-05-12 00:37:26

●A103.166.184.2162026-05-10 → 2026-05-12 · 3 obs

○ 2026-05-01 14:44:52
● 2026-05-10 17:37:36
● 2026-05-12 00:37:26

○A103.90.233.2222026-05-01 → 2026-05-01 · 3 obs

● 2026-05-01 14:44:52
○ 2026-05-10 17:37:36
○ 2026-05-12 00:37:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
caohohungthinh.com	ndns1.cosmotown.com, ndns2.cosmotown.com	2 records

✅ Authoritative Response

Server:54.177.47.228

NS records: ndns1.cosmotown.com, ndns2.cosmotown.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for caohohungthinh.com (unsigned zone)

⏱️ Timing

Total: 274ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.166.184.216`
NS	2	`ndns2.cosmotown.com, ndns1.cosmotown.com`
SOA	1	`a.misconfigured.dns.server.invalid hostm`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ndns1.cosmotown.com, ndns2.cosmotown.com)

Analysis

IP Addresses

caohohungthinh.com points to IP number: 103.166.184.216.

Other host names such as thegioinuocuong.net, www.amax.edu.vn and amax.edu.vn share IP numbers with caohohungthinh.com.

Name Servers

caohohungthinh.com is delegated to three name servers: ndns1.cosmotown.com, ndns2.cosmotown.com and a.misconfigured.dns.server.invalid.

caohohungthinh.com at least partially shares name servers with other domains, for instance miliboo.co.uk, 99.48.84.in-addr.arpa, ruby-av.com, tla.ee and cougardiscreet.com.

These name servers are commonly used with ns1.cbsv.jp, ns2.cbsv.jp, ns1.domeeninimi.ee, ns2.domeeninimi.ee, ns1.radinko.com and ns2.radinko.com.

Host names with a single IP:

ndns1.cosmotown.com points to 184.72.57.6.

ndns2.cosmotown.com points to 54.177.47.228.

caohohungthinh.com - robtex.com