smartu.vn - robtex.com
smartu.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=2031009934 | ||||||
Subdomains
www.smartu.vn |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●A103.18.6.442026-05-01 → 2026-07-18 · 2 obs
● 2026-07-18 00:24:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| smartu.vn | ns-b1.tenten.vn, ns-b3.tenten.vn, ns-b2.tenten.vn | - |
✅ Authoritative Response
Server:137.59.104.67
NS records: ns-b1.tenten.vn, ns-b3.tenten.vn, ns-b2.tenten.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for smartu.vn (unsigned zone)
⏱️ Timing
Total: 1796ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.18.6.44 |
| NS | 3 | ns-b3.tenten.vn, ns-b1.tenten.vn... |
| SOA | 1 | ns-b3.tenten.vn noreply.tenten.vn |
Analysis
Hierarchy
smartu.vn is the parent zone for www.smartu.vn.
IP Addresses
smartu.vn resolves to one IP address: 103.18.6.44.
mail.nhathuocminhchauhcm.vn, tgifxcpcalendars.sikvietnam.edu.vn, webmail.peterpann.com.vn and two other host names share IP numbers with smartu.vn.
Name Servers
DNS for smartu.vn is handled by three authoritative name servers: ns-b1.tenten.vn, ns-b2.tenten.vn and ns-b3.tenten.vn.
smartu.vn partially shares its NS delegation with several other domains, including hctransport.vn, xetaihathanh.vn, fc.com.vn and two others.
These name servers regularly co-occur with the name servers ns-a1.tenten.vn, ns-a2.tenten.vn and ns-a3.tenten.vn.
Three hostnames — ns-b1.tenten.vn, ns-b2.tenten.vn and ns-b3.tenten.vn — each have two IP addresses: ns-b1.tenten.vn has 137.59.104.67 and 2404:f080:1101:321:a150:95:110:1230, ns-b2.tenten.vn has 137.59.104.68 and 2404:f080:1101:321:a150:95:110:1231, and ns-b3.tenten.vn has 163.44.207.21 and 2404:f080:1101:321:a150:95:110:1232.