`tthd.vn`

DNSSEC	⚠️ Not signed
A	103.124.95.201^{🇻🇳 NHAN-HOA-AS-VN103.124.95.0/24 NHANHOA-VN}
NS	`ns1.viettelidc.com.vn` ⭐ ⚠️ Not in parent delegation
		A	2401:5f80:2000:2::4^{🇻🇳 VTDC-AS-VN2401:5f80:2000::/36 VTDC-VN}
		A	115.84.177.33^{🇻🇳 VTDC-AS-VN115.84.176.0/22 Proxy-registered route object}
			PTR	`ns1.vtdc.net`
			PTR	`ns1.viettelidc.com.vn`
NS	`ns.viettelidc.com.vn`
		A	2401:5f80:2000:1::5^{🇻🇳 VTDC-AS-VN2401:5f80:2000::/36 VTDC-VN}
		A	115.84.177.8^{🇻🇳 VTDC-AS-VN115.84.176.0/22 Proxy-registered route object}
			PTR	`ns.vtdc.net`
			PTR	`ns.viettelidc.com.vn`
NS	`ns2.viettelidc.com.vn`
		A	2401:5f80:4000:1::4^{🇻🇳 VTDC-AS-VN2401:5f80:4000::/36 VTDC-VN}
		A	115.84.181.10^{🇻🇳 VTDC-AS-VN115.84.180.0/22 Proxy-registered route object}
			PTR	`ns2.vtdc.net`
			PTR	`ns2.viettelidc.com.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	`v=spf1 include:zoho.com include:_spf.google.com ~all`
TXT	`zoho-verification=zb10575437.zmverify.zoho.com`
SOA	`ns.viettelidc.com.vn`hostmaster@tthd.vn serial=1777988108

`vn`

	DNSSEC	🔒 Signed (DS record present)
	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=2030733548

Subdomains

test.tthd.vn

www.tthd.vn

bhh.tthd.vn

thuyloivp.tthd.vn

Same first word

tthd.vn

Similar names

dhtt.vn

htdt.com.cn

htdt.ru

dtth.net

ttdh.net

htdt.me

hdtt.nl

htdt.net

tdth.com

thdt.vn

dtth.cn

dtht.com

dhtt.org

thtd.com

hdtt.vn

dhtt.in

tdth.cn

dtht.in

hdtt.com

thdt.com

httd.de

tdht.jp

ttdh.cn

httd.cn

thdt.org.vn

thdt.org

htdt.cn

htdt.com

dtth.com

ttdh.com

htdt.de

htdt.eu

dhtt.com

thdt.de

tdht.com.cn

hdtt.myshopify.com

dhtt.de

thtd.edu.vn

httd.com.cn

tdht.sa.com

thtd.net

tdht.com

htdt.github.io

httd.ru

DNS History

7 records (7 active, 0 former)

●NSns.viettelidc.com.vn2026-05-01 → 2026-05-05 · 2 obs

● 2026-05-01 09:53:00
● 2026-05-05 13:38:40

●NSns1.viettelidc.com.vn2026-05-01 → 2026-05-05 · 2 obs

● 2026-05-01 09:53:00
● 2026-05-05 13:38:40

●NSns2.viettelidc.com.vn2026-05-01 → 2026-05-05 · 2 obs

● 2026-05-01 09:53:00
● 2026-05-05 13:38:40

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

● 2026-05-01 09:53:00
● 2026-05-05 13:38:40

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

● 2026-05-01 09:53:00
● 2026-05-05 13:38:40

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

● 2026-05-01 09:53:00
● 2026-05-05 13:38:40

●A103.124.95.2012026-05-01 → 2026-05-05 · 2 obs

● 2026-05-01 09:53:00
● 2026-05-05 13:38:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
tthd.vn	ns1.viettelidc.com.vn, ns2.viettelidc.com.vn	-

✅ Authoritative Response

Server:115.84.181.10

NS records: ns1.viettelidc.com.vn, ns2.viettelidc.com.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tthd.vn (unsigned zone)

⏱️ Timing

Total: 2364ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.124.95.201`
NS	3	`ns.viettelidc.com.vn, ns1.viettelidc.com.vn...`
MX	3	`mx3.zoho.com (pri: 50), mx.zoho.com (pri: 10)...`
TXT	2	`v=spf1 include:zoho.com include:_spf.goo, zoho-verification=zb10575437.zmverify.zo`
SOA	1	`ns.viettelidc.com.vn hostmaster.tthd.vn`

Analysis

Hierarchy

tthd.vn is parent of test.tthd.vn, www.tthd.vn, bhh.tthd.vn and thuyloivp.tthd.vn.

IP Addresses

tthd.vn points to IP number 103.124.95.201.

For instance, other host names test.tthd.vn, quanlybh.vn, test.quanlybh.vn, evina.vn and bhh.tthd.vn share IP numbers with tthd.vn.

Name Servers

The delegation for tthd.vn is handled by three name servers: ns1.viettelidc.com.vn, ns2.viettelidc.com.vn and ns.viettelidc.com.vn.

tthd.vn shares name servers with other domains at least partially, for example dogu.vn, gatino.vn, khaiquoc.com, pvos.vn and vitinhlegia.com.