`libtdu.stemlib.vn`

CNAME	`stemlib.vn`
DNSSEC	⚠️ Not signed
A	202.92.4.71^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN}
NS	`ns-master.inet.vn` ⭐
		A	202.92.4.8^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN}
NS	`ns1.inet.vn`
		A	2001:df7:ce00:1::7^{🇻🇳 VNPT-AS-VN2001:df7:ce00::/48 INETSOFT-VN Inet software one member company limited}
		A	202.92.4.25^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN}
NS	`ns2.inet.vn`
		A	2401:5f80:2001:4::30^{🇻🇳 VTDC-AS-VN2401:5f80:2000::/36 VTDC-VN}
		A	210.211.99.38^{🇻🇳 VTDC-AS-VN210.211.99.0/24 Proxy-registered route object}
NS	`ns3.inet.vn`
		A	2401:5f80:4001:4::14^{🇻🇳 VTDC-AS-VN2401:5f80:4000::/36 VTDC-VN}
		A	203.113.174.42^{🇻🇳 VTDC-AS-VN203.113.174.0/23 VIETTEL-VN}
SOA	`ns-master.inet.vn`postmaster@inet.vn 2015-07-28 #0

`stemlib.vn`

	DNSSEC	⚠️ Not signed
	A	202.92.4.71^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN}
	NS	`ns-master.inet.vn` ⭐
	NS	`ns1.inet.vn`
	NS	`ns2.inet.vn`
	NS	`ns3.inet.vn`
	SOA	`ns-master.inet.vn`postmaster@inet.vn 2015-07-28 #0

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DNS History

1 record (1 active, 0 former)

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

● 2026-05-01 17:40:00
● 2026-05-09 21:05:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	d.dns-servers.vn, e.dns-servers.vn, h.dns-servers.vn, f.dns-servers.vn...	-
stemlib.vn	ns2.inet.vn, ns3.inet.vn, ns1.inet.vn	3 records

✅ Authoritative Response

Server:203.113.174.10

NS records: ns2.inet.vn, ns3.inet.vn, ns1.inet.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stemlib.vn (unsigned zone)

⏱️ Timing

Total: 1545ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`stemlib.vn`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.inet.vn, ns2.inet.vn, ns3.inet.vn)

Analysis

IP Addresses

libtdu.stemlib.vn points to a single IP number: 202.92.4.71.

other host names for instance catramgion.com.vn.fcgjjuat.nethost-4111.000nethost.com, cpcontacts.truongdaotaolaixe.vn, www.hcdigital.com.vn, xn--taxilngsn-2mc4772f.com.vn and banghieuquangcao.net share IP numbers with libtdu.stemlib.vn.

Name Servers

libtdu.stemlib.vn is delegated to four name servers: ns-master.inet.vn, ns1.inet.vn, ns2.inet.vn and ns3.inet.vn.

libtdu.stemlib.vn at least partially shares name servers with other domains, for instance mail.com.vn, gskylinetbsgroup.vn, boxtiktok.online, vsense.com.vn and alangon.com.

Two IPs for hosts:

ns1.inet.vn points to: 2001:df7:ce00:1::7 and 202.92.4.25

ns2.inet.vn points to: 2401:5f80:2001:4::30 and 210.211.99.38

ns3.inet.vn points to: 2401:5f80:4001:4::14 and 203.113.174.42

One IP for a host:

ns-master.inet.vn points to: 202.92.4.8

libtdu.stemlib.vn - robtex.com