`heradg.vn`

DNSSEC	⚠️ Not signed
A	222.252.1.111^{🇻🇳 VTN-1222.252.0.0/20 VNPT-Net}
		PTR	`mayducgiang.com.vn`
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}
MX	`mx2.zoho.com` ⭐
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx3.zoho.com`⁽²⁰⁾
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽⁵⁰⁾
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`zoho-verification=zb30247582.zmverify.zoho.com`
TXT	`@`
TXT	`google-site-verification=F_hjGdJR89OxBIpQxL07Vn_CrO50qKPKfRx0QGfH8_o`
TXT	`v=spf1 include:zoho.com ~all`
SOA	`ns1.zonedns.vn`root@heradg.vn 2024-04-17 #3

`vn`

	DNSSEC	⚠️ Not signed
	NS	`dns-master.vnnic.vn` ⭐
	NS	`a.dns-servers.vn`
	NS	`b.dns-servers.vn`
	NS	`c.dns-servers.vn`
	NS	`d.dns-servers.vn`
	NS	`e.dns-servers.vn`
	NS	`f.dns-servers.vn`
	NS	`g.dns-servers.vn`
	NS	`h.dns-servers.vn`
	SOA	`dns-master.vnnic.vn`postmaster@vnnic.vn serial=2030753463

Same first word

heradg.vn

heradg.com.vn

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DNS History

8 records (8 active, 0 former)

●NSns1.zonedns.vn2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:41:26
● 2026-05-09 18:44:30

●NSns2.zonedns.vn2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:41:26
● 2026-05-09 18:44:30

●NSns3.zonedns.vn2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:41:26
● 2026-05-09 18:44:30

●NSns4.zonedns.vn2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:41:26
● 2026-05-09 18:44:30

●MXmx.zoho.com2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:41:26
● 2026-05-09 18:44:30

●MXmx2.zoho.com2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:41:26
● 2026-05-09 18:44:30

●MXmx3.zoho.com2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:41:26
● 2026-05-09 18:44:30

●A222.252.1.1112026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:41:26
● 2026-05-09 18:44:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	c.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn...	-
heradg.vn	ns1.zonedns.vn, ns3.zonedns.vn, ns2.zonedns.vn, ns4.zonedns.vn	-

✅ Authoritative Response

Server:64.176.84.220

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for heradg.vn (unsigned zone)

⏱️ Timing

Total: 2741ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`222.252.1.111`
NS	4	`ns1.zonedns.vn, ns4.zonedns.vn...`
MX	3	`mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)...`
TXT	4	`google-site-verification=F_hjGdJR89OxBIp, @...`
SOA	1	`ns1.zonedns.vn root.heradg.vn`

Analysis

IP Addresses

heradg.vn points to a single IP number: 222.252.1.111.

other host names for instance dgcmenfashion.vn, www.dgcs.vn, dgcs.vn, mail.mayducgiang.com.vn and www.mayducgiang.com.vn share IP numbers with heradg.vn.

Name Servers

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

heradg.vn at least partially shares name servers with other domains, for instance fordgiaiphong.com, mathcal.net, mshopfcm.com, camelliatours.vn and hola.edu.vn.