estech.vn - robtex.com

estech.vn

DNSSEC⚠️ Not signed
NSns1.zonedns.vn ⚠️ Not in zone NS records
A2401:c080:1400:1cd4:5400:5ff:fe80:ec33🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix
A64.176.84.220🇸🇬 AS-VULTR64.176.80.0/20 Vultr Assigned Prefix
PTRns1.zonedns.vn
NSns2.zonedns.vn ⚠️ Not in zone NS records
A2401:c080:1400:1cd4:5400:5ff:fe80:ec33🇸🇬 AS-VULTR2401:c080:1400::/38 Vultr Assigned Prefix
A103.176.178.51🇻🇳 NHAN-HOA-AS-VN103.176.178.0/24 NINETECH-VN
NSns3.zonedns.vn ⚠️ Not in zone NS records
A2001:df1:3200::15🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN
A103.28.36.30🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN
NSns4.zonedns.vn ⚠️ Not in zone NS records
A2001:df1:3200::15🇻🇳 NHAN-HOA-AS-VN2001:df1:3200::/48 NHANHOA-VN
A103.28.39.159🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN

vn

DNSSEC🔒 Signed (DS record present)
NSdns-master.vnnic.vn ⭐
NSa.dns-servers.vn
NSb.dns-servers.vn
NSc.dns-servers.vn
NSd.dns-servers.vn
NSe.dns-servers.vn
NSf.dns-servers.vn
NSg.dns-servers.vn
NSh.dns-servers.vn
SOAdns-master.vnnic.vnpostmaster@vnnic.vn 2031-10-26 #49

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DNS History

4 records (4 active, 0 former)

NSns1.zonedns.vnns2.zonedns.vnns3.zonedns.vnns4.zonedns.vn
●NSns1.zonedns.vn2026-08-10 → 2026-08-12 · 2 obs
● 2026-08-10 10:05:48
● 2026-08-12 18:45:56
●NSns2.zonedns.vn2026-08-10 → 2026-08-12 · 2 obs
● 2026-08-10 10:05:48
● 2026-08-12 18:45:56
●NSns3.zonedns.vn2026-08-10 → 2026-08-12 · 2 obs
● 2026-08-10 10:05:48
● 2026-08-12 18:45:56
●NSns4.zonedns.vn2026-08-10 → 2026-08-12 · 2 obs
● 2026-08-10 10:05:48
● 2026-08-12 18:45:56

🔍 DNS Trace

Analysis

Name Servers

The authoritative name servers for estech.vn are ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.

estech.vn has at least partial name server overlap with other domains, such as thietkehosonangluc.edu.vn, vuhungtai.com, vinashoot.com.vn and two others.

It is common to see these name servers used together with name servers ns2008.nhanhoa.com.vn and ns2009.nhanhoa.com.vn.

Each of the four hosts ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn has two IP addresses: ns1.zonedns.vn resolves to 64.176.84.220 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33; ns2.zonedns.vn resolves to 103.176.178.51 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33; ns3.zonedns.vn resolves to 103.28.36.30 and 2001:df1:3200::15; ns4.zonedns.vn resolves to 103.28.39.159 and 2001:df1:3200::15.

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

Host names pointing to 2001:df1:3200::15 IP addresses: ns3.zonedns.vn and ns4.zonedns.vn.