mail.techstack.io.vn - robtex.com

mail.techstack.io.vn

CNAMEtechstack.io.vn
DNSSEC⚠️ Not signed
A103.255.237.236🇻🇳 LUUTRUSO-AS-VN103.255.237.0/24 LUUTRUSO-VN
PTRno-ptr.123host.vn
NSns1.zonedns.vn ⭐
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
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
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
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
MXtechstack.io.vn ⭐
A103.255.237.236🇻🇳 LUUTRUSO-AS-VN103.255.237.0/24 LUUTRUSO-VN
PTRno-ptr.123host.vn
SOAns1.zonedns.vnroot@techstack.io.vn 2026-01-21 #3

techstack.io.vn

DNSSEC⚠️ Not signed
A103.255.237.236🇻🇳 LUUTRUSO-AS-VN103.255.237.0/24 LUUTRUSO-VN
NSns1.zonedns.vn ⭐
NSns2.zonedns.vn
NSns3.zonedns.vn
NSns4.zonedns.vn
MXtechstack.io.vn ⭐
SOAns1.zonedns.vnroot@techstack.io.vn 2026-01-21 #3

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DNS History

1 record (1 active, 0 former)

CNAMEtechstack.io.vn
●CNAMEtechstack.io.vn2026-05-01 → 2026-06-12 · 2 obs
● 2026-05-01 08:59:24
● 2026-06-12 18:44:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vna.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...-
techstack.io.vnns1.zonedns.vn, ns4.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn-

✅ Authoritative Response

Server:103.28.39.159

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for techstack.io.vn (unsigned zone)

⏱️ Timing

Total: 2220ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1techstack.io.vn

Analysis

IP Addresses

mail.techstack.io.vn resolves to just one IP address, 103.255.237.236.

jackvuongland.com and techstack.io.vn, along with other host names, share IP addresses with mail.techstack.io.vn.

Name Servers

mail.techstack.io.vn is delegated to four name servers, ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.

mail.techstack.io.vn partially shares its NS delegation with several other domains, including duocvang.com, vnwebsites.com, tamnhuadailoan.vn and two others.

These name servers are regularly seen alongside ns2008.nhanhoa.com.vn and ns2009.nhanhoa.com.vn as name servers.

The hosts ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn all have two IP addresses each. ns1.zonedns.vn has 64.176.84.220 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33. ns2.zonedns.vn has 103.176.178.51 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33. ns3.zonedns.vn has 103.28.36.30 and 2001:df1:3200::15. ns4.zonedns.vn has 103.28.39.159 and 2001:df1:3200::15. Notably 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 appears for both ns1.zonedns.vn and ns2.zonedns.vn and 2001:df1:3200::15 appears for both ns3.zonedns.vn and ns4.zonedns.vn.

These two host names — ns1.zonedns.vn and ns2.zonedns.vn — each point to 2401:c080:1400:1cd4:5400:5ff:fe80:ec33 IP addresses.

These two host names — ns3.zonedns.vn and ns4.zonedns.vn — each point to 2001:df1:3200::15 IP addresses.

Mail Servers

The sole mail server for mail.techstack.io.vn is techstack.io.vn.

Mail server setup for mail.techstack.io.vn matches that of other domains, among them techstack.io.vn.

There is one IP number for techstack.io.vn: 103.255.237.236.