`congtien.com.vn`

DNSSEC	⚠️ Not signed
A	27.71.27.234^{🇻🇳 VIETEL-AS-AP27.71.24.0/21 Proxy-registered route object}
NS	`ns99.vdc2.vn` ⭐
		A	14.225.232.26^{🇻🇳 VNPT-AS-VN14.225.232.0/24 VNPT}
			PTR	`static.vnpt.vn`
NS	`ns100.vdc2.vn`
		A	14.225.232.25^{🇻🇳 VNPT-AS-VN14.225.232.0/24 VNPT}
			PTR	`static.vnpt.vn`
MX	`filter10.antispamcloud.com` ⭐
		A	2001:550:2:61::2fc:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
		A	38.89.254.156^{🇺🇸 AS1663338.89.254.0/23}
			PTR	`fe1-r2-in.ch03.l.antispamcloud.com`
MX	`filter20.antispamcloud.com`⁽²⁰⁾
		A	2001:550:2:61::2fc:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
		A	38.89.254.156^{🇺🇸 AS1663338.89.254.0/23}
			PTR	`fe1-r2-in.ch03.l.antispamcloud.com`
MX	`filter30.antispamcloud.com`⁽³⁰⁾
		A	2001:550:2:3::62:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
			PTR	`fe2-r2-in.la10.l.antispamcloud.com`
		A	38.71.16.244^{🇺🇸 AS1663338.71.16.0/24}
			PTR	`fe2-r2-in.la10.l.antispamcloud.com`
MX	`filter40.antispamcloud.com`⁽⁴⁰⁾
		A	2001:550:2:78::ca:100^{🇺🇸 COGENT2001:550::/32 Cogent Communications}
			PTR	`fe3-r2-in.atl06.l.antispamcloud.com`
		A	38.101.250.150^{🇺🇸 AS1663338.101.250.0/24}
			PTR	`fe3-r2-in.atl06.l.antispamcloud.com`
TXT	`google-site-verification=xeLQn9cfKtF_5QK6CWRqmAA5yqDQnHeNG5n1VhZzGzU`
TXT	`v=spf1 include:spf.maychuemail.com ~all include:_spf.haravan.com ~all`
TXT	`zalo-platform-site-verification=NFM2BxlZ97XYwwzrczuXSdlre5UNYd0EC3S`
TXT	`f69815a1408282187041b30a531f0781`
TXT	`google-site-verification=zxQd81Py2e-XqoT(0x787858)Pp7zfw1EnvdDZDsfn7SJKpZFU`
SOA	`ns99.vdc2.vn`info@vdc2.vn 2026-03-06 #1

`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=2022707613

Subdomains

quanlydungcukimloai.congtien.com.vn

cuahang.congtien.com.vn

downtime.congtien.com.vn

tuyendung.congtien.com.vn

training.congtien.com.vn

anca.congtien.com.vn

dashboard.congtien.com.vn

tienich.congtien.com.vn

servertienich.congtien.com.vn

effmachine.congtien.com.vn

ksnb.congtien.com.vn

Same first word

congtien.com.vn

Similar names

DNS History

7 records (7 active, 0 former)

●NSns100.vdc2.vn2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 08:56:58
● 2026-05-10 03:02:28

●NSns99.vdc2.vn2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 08:56:58
● 2026-05-10 03:02:28

●MXfilter10.antispamcloud.com2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 08:56:58
● 2026-05-10 03:02:28

●MXfilter20.antispamcloud.com2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 08:56:58
● 2026-05-10 03:02:28

●MXfilter30.antispamcloud.com2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 08:56:58
● 2026-05-10 03:02:28

●MXfilter40.antispamcloud.com2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 08:56:58
● 2026-05-10 03:02:28

●A27.71.27.2342026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 08:56:58
● 2026-05-10 03:02:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
congtien.com.vn	ns99.vdc2.vn, ns100.vdc2.vn	-

✅ Authoritative Response

Server:14.225.232.26

NS records: ns99.vdc2.vn, ns100.vdc2.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 1819ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`27.71.27.234`
NS	2	`ns100.vdc2.vn, ns99.vdc2.vn`
MX	4	`filter30.antispamcloud.com (pri: 30), filter10.antispamcloud.com (pri: 10)...`
TXT	5	`zalo-platform-site-verification=NFM2BxlZ, v=spf1 include:spf.maychuemail.com ~all ...`
SOA	1	`ns99.vdc2.vn info.vdc2.vn`

Analysis

Hierarchy

congtien.com.vn is a parent of quanlydungcukimloai.congtien.com.vn, cuahang.congtien.com.vn, downtime.congtien.com.vn, tuyendung.congtien.com.vn, training.congtien.com.vn and several other host names.

IP Addresses

congtien.com.vn points to a single IP number: 27.71.27.234.

Other host names, for instance downtime.congtien.com.vn, tuyendung.congtien.com.vn, training.congtien.com.vn, anca.congtien.com.vn and dashboard.congtien.com.vn share IP numbers with congtien.com.vn.

Name Servers

Delegation for congtien.com.vn rests with two name servers, ns100.vdc2.vn and ns99.vdc2.vn.

congtien.com.vn shares the same name server setup as other domains, including vpa.org.vn, sinhlynu.net, intemvina.vn, nyd.com.vn and ctu.vn.