`dothocaocap.com.vn`

DNSSEC	⚠️ Not signed
A	103.28.36.88^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}
		PTR	`sharewin3688.nhanhoa.com`
NS	`ns1.zonedns.vn` ⭐
		A	2401:c080:1400:1cd4:5400:5ff:fe80:ec33^{🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix}
		A	64.176.84.220^{🇸🇬 AS-VULTR64.176.80.0/20 Vultr Assigned Prefix}
			PTR	`ns1.zonedns.vn`
NS	`ns2.zonedns.vn`
		A	2401:c080:1400:1cd4:5400:5ff:fe80:ec33^{🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix}
		A	103.176.178.51^{🇻🇳 NHAN-HOA-AS-VN103.176.178.0/24 NINETECH-VN}
NS	`ns3.zonedns.vn`
		A	2001:df1:3200::15^{🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN}
		A	103.28.36.30^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}
NS	`ns4.zonedns.vn`
		A	2001:df1:3200::15^{🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN}
		A	103.28.39.159^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}
SOA	`ns1.zonedns.vn`root@dothocaocap.com.vn 2022-05-03 #2

`com.vn`

	DNSSEC	⚠️ Not signed
	NS	`dns-master.vnnic.vn` ⭐
	NS	`a.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`b.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`c.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`d.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`e.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`f.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`g.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`h.dns-servers.vn` ⚠️ Not in parent delegation
	SOA	`dns-master.vnnic.vn`postmaster@vnnic.vn serial=2022713085

Subdomains

webmail.dothocaocap.com.vn

Same first word

dothocaocap.com.vn

DNS History

5 records (5 active, 0 former)

●NSns1.zonedns.vn2026-05-01 → 2026-05-13 · 2 obs

● 2026-05-01 15:33:16
● 2026-05-13 05:46:34

●NSns2.zonedns.vn2026-05-01 → 2026-05-13 · 2 obs

● 2026-05-01 15:33:16
● 2026-05-13 05:46:34

●NSns3.zonedns.vn2026-05-01 → 2026-05-13 · 2 obs

● 2026-05-01 15:33:16
● 2026-05-13 05:46:34

●NSns4.zonedns.vn2026-05-01 → 2026-05-13 · 2 obs

● 2026-05-01 15:33:16
● 2026-05-13 05:46:34

●A103.28.36.882026-05-01 → 2026-05-13 · 5 obs

● 2026-05-01 15:33:16
● 2026-05-07 14:30:34
○ 2026-05-08 09:50:46
● 2026-05-08 16:25:28
● 2026-05-13 05:46:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
dothocaocap.com.vn	ns2.zonedns.vn, ns3.zonedns.vn, ns1.zonedns.vn, ns4.zonedns.vn	-

✅ Authoritative Response

Server:64.176.84.220

NS records: ns2.zonedns.vn, ns3.zonedns.vn, ns1.zonedns.vn, ns4.zonedns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dothocaocap.com.vn (unsigned zone)

⏱️ Timing

Total: 2676ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.28.36.88`
NS	4	`ns4.zonedns.vn, ns2.zonedns.vn...`
SOA	1	`ns1.zonedns.vn root.dothocaocap.com.vn`

Analysis

Hierarchy

The parent of webmail.dothocaocap.com.vn is dothocaocap.com.vn.

IP Addresses

dothocaocap.com.vn points to IP number: 103.28.36.88.

Other host names such as ojhtumoffice.bangtin.quangtri.edu.vn, qlvb.bangtin.quangtri.edu.vn, www.southsea.vn, newhorizonhotel.com and ns87.nhanhoa.com share IPs with dothocaocap.com.vn.

Name Servers

dothocaocap.com.vn is delegated to four name servers: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.

dothocaocap.com.vn at least partially shares name servers with other domains, for instance icctours.com, dongdohy.edu.vn, vinhomesmongcai.com.vn, thucungonline.vn and noithatphuhung.com.

Host names with two IP numbers:

ns1.zonedns.vn points to: 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 and 64.176.84.220.

ns2.zonedns.vn points to: 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 and 103.176.178.51.

ns3.zonedns.vn points to: 2001:df1:3200::15 and 103.28.36.30.

ns4.zonedns.vn points to: 2001:df1:3200::15 and 103.28.39.159.

Host names that point to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33: ns1.zonedns.vn and ns2.zonedns.vn.

Host names that point to 2001:df1:3200::15: ns3.zonedns.vn and ns4.zonedns.vn.

dothocaocap.com.vn - robtex.com