duotech.vn - robtex.com
duotech.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=2030753623 | ||||||
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.pavietnam.vn2026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 01:20:22
●NSns2.pavietnam.vn2026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 01:20:22
●NSnsbak.pavietnam.net2026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 01:20:22
●MXduotech-vn.mail.protection.outlook.com2026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 01:20:22
●A103.110.86.682026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 01:20:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| duotech.vn | ns1.pavietnam.vn, ns2.pavietnam.vn, nsbak.pavietnam.net | 4 records |
✅ Authoritative Response
Server:112.213.89.22
NS records: ns1.pavietnam.vn, ns2.pavietnam.vn, nsbak.pavietnam.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for duotech.vn (unsigned zone)
⏱️ Timing
Total: 1132ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.110.86.68 |
| NS | 3 | ns1.pavietnam.vn, nsbak.pavietnam.net... |
| MX | 1 | duotech-vn.mail.protection.outlook.com ( |
| TXT | 2 | v=spf1 include:spf.protection.outlook.co, MS=ms63490413 |
| SOA | 1 | ns1.pavietnam.vn hostmaster.duotech.vn |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns2.pavietnam.vn, ns2.pavietnam.vn, ns1.pavietnam.vn...)
Analysis
IP Addresses
duotech.vn resolves to one IP number: 103.110.86.68.
Name Servers
duotech.vn is delegated to three name servers nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn.
duotech.vn at least partially shares name servers with other domains, for instance legamex.com.vn, dkn.vn, maylanhgiakho.com, anhcuoigialai.com and hanexenglish.edu.vn.
These name servers are commonly used with ns1.dotvndns.vn, ns2.dotvndns.vn and nsbak.dotvndns.com.
Host names with two IP numbers:
nsbak.pavietnam.net points to: 2406:9c80::9000:302 and 112.213.89.22.
ns1.pavietnam.vn points to: 2406:9c80::66 and 112.213.89.3.
ns2.pavietnam.vn points to: 2406:9c80::9000:111 and 222.255.121.247.
Mail Servers
duotech.vn is handled by a single mail server, duotech-vn.mail.protection.outlook.com.
The host name duotech-vn.mail.protection.outlook.com resolves to six IP numbers: 2a01:111:f403:cc09::, 2a01:111:f403:cc1a::8, 2a01:111:f403:cc1f::4, 52.101.124.117, 52.101.137.0 and 52.101.157.80.