techsys.vn - dns.ninja
techsys.vn
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.vnpostmaster@vnnic.vn serial=2031000532 | ||||||
Previously MX for
techsys.vn |
Subdomains
www.techsys.vn |
Same first word
Similar names
DNS History
10 records (8 active, 2 former)
●NSns1.zonedns.vn2018-08-25 → 2026-07-15 · 2 obs
● 2026-07-15 12:43:34
●NSns2.zonedns.vn2018-08-25 → 2026-07-15 · 2 obs
● 2026-07-15 12:43:34
●NSns3.zonedns.vn2018-08-25 → 2026-07-15 · 2 obs
● 2026-07-15 12:43:34
●NSns4.zonedns.vn2026-02-21 → 2026-07-15 · 3 obs
● 2026-02-21 17:17:44
● 2026-07-15 12:43:34
●MXmx.zoho.com2026-02-21 → 2026-07-15 · 6 obs
● 2026-02-21 17:17:44
● 2026-06-10 14:52:14
○ 2026-06-12 09:58:58
● 2026-06-17 22:09:04
● 2026-07-15 12:43:34
●MXmx2.zoho.com2026-02-21 → 2026-07-15 · 6 obs
● 2026-02-21 17:17:44
● 2026-06-10 14:52:14
○ 2026-06-12 09:58:58
● 2026-06-17 22:09:04
● 2026-07-15 12:43:34
●MXmx3.zoho.com2026-02-21 → 2026-07-15 · 6 obs
● 2026-02-21 17:17:44
● 2026-06-10 14:52:14
○ 2026-06-12 09:58:58
● 2026-06-17 22:09:04
● 2026-07-15 12:43:34
○MXtechsys.vn2018-08-25 → 2018-08-25 · 3 obs
○ 2026-02-21 17:17:44
○ 2026-07-15 12:43:34
●A103.101.163.1162026-02-21 → 2026-07-15 · 6 obs
● 2026-02-21 17:17:44
● 2026-06-10 14:52:14
○ 2026-06-12 09:58:58
● 2026-06-17 22:09:04
● 2026-07-15 12:43:34
○A210.245.94.1142018-08-25 → 2018-08-25 · 3 obs
○ 2026-02-21 17:17:44
○ 2026-07-15 12:43:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | c.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn, a.dns-servers.vn... | 16 records |
| techsys.vn | ns2.zonedns.vn, ns4.zonedns.vn, ns1.zonedns.vn, ns3.zonedns.vn | - |
✅ Authoritative Response
Server:103.28.36.30
NS records: ns2.zonedns.vn, ns4.zonedns.vn, ns1.zonedns.vn, ns3.zonedns.vn
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 2834ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.101.163.116 |
| NS | 4 | ns3.zonedns.vn, ns2.zonedns.vn... |
| MX | 3 | mx.zoho.com (pri: 10), mx3.zoho.com (pri: 50)... |
| TXT | 2 | v=spf1 include:zoho.com ~all, google-site-verification=zg05s-C5epGVFCC |
| SOA | 1 | ns1.zonedns.vn root.techsys.vn |
📌 Glue Records Collected
Total: 16
In-bailiwick: 16 (a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn...)
Analysis
Hierarchy
techsys.vn is a parent domain of www.techsys.vn.
IP Addresses
techsys.vn points to a single IP number: 103.101.163.116.
Additional host names — ccv-france.org, anhhoang.edu.vn, tecsolin.com and two others — share IP numbers with techsys.vn.
Name Servers
techsys.vn has four authoritative name servers: ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn.
techsys.vn shares at least some of its name servers with other domains, including sporthouse.vn, vantaihaphuong.com, greenholdingsport.com and two others.
These name servers are frequently paired with the name servers ns2008.nhanhoa.com.vn and ns2009.nhanhoa.com.vn.
ns1.zonedns.vn, ns2.zonedns.vn, ns3.zonedns.vn and ns4.zonedns.vn each resolve to two IP addresses. ns1.zonedns.vn points to 64.176.84.220 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33. ns2.zonedns.vn points to 103.176.178.51 and 2401:c080:1400:1cd4:5400:5ff:fe80:ec33. ns3.zonedns.vn points to 103.28.36.30 and 2001:df1:3200::15. ns4.zonedns.vn points to 103.28.39.159 and 2001:df1:3200::15.
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
techsys.vn is handled by three mail servers: mx2.zoho.com, mx3.zoho.com and mx.zoho.com.
techsys.vn shares mail servers — at least in part — with other domains, including magnuswma.com, sanmarc.com.br, apartmentpermits.com and two others.
mx2.zoho.com resolves to 204.141.33.44. Notably, mx3.zoho.com and mx.zoho.com share the same IP address, 204.141.43.44.
These two host names — mx3.zoho.com and mx.zoho.com — each point to 204.141.43.44 IP addresses.