topsmart.vn - robtex.com
topsmart.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=2030751854 | ||||||
Subdomains
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●MXmail.topsmart.vn2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 15:03:38
●A103.82.37.372026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 15:03:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | f.dns-servers.vn, g.dns-servers.vn, a.dns-servers.vn, h.dns-servers.vn... | - |
| topsmart.vn | ns-b2.tenten.vn, ns-b3.tenten.vn, ns-b1.tenten.vn | - |
✅ Authoritative Response
Server:163.44.207.21
NS records: ns-b2.tenten.vn, ns-b3.tenten.vn, ns-b1.tenten.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for topsmart.vn (unsigned zone)
⏱️ Timing
Total: 2081ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.82.37.37 |
| NS | 3 | ns-b3.tenten.vn, ns-b2.tenten.vn... |
| MX | 1 | mail.topsmart.vn (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:150.95.110.205 includ |
| SOA | 1 | ns-b3.tenten.vn noreply.tenten.vn |
Analysis
Hierarchy
topsmart.vn is a parent of smtp.topsmart.vn, pop.topsmart.vn, www.topsmart.vn, mail.topsmart.vn and ftp.topsmart.vn.
IP Addresses
topsmart.vn resolves to a single IP: 103.82.37.37.
Other host names, for instance webmail.uss.edu.vn, dddd.uss.edu.vn, ciptvwebdisk.vivc.vn, mta-sts.uss.edu.vn and wbsubdomain.a.bb.ccc.dddd.uss.edu.vn share IP numbers with topsmart.vn.
Name Servers
topsmart.vn delegates to three name servers: ns-b1.tenten.vn, ns-b2.tenten.vn and ns-b3.tenten.vn.
topsmart.vn shares some name servers with other domains, for example vejun.edu.vn, aisota.vn, sualaptopninhbinh.io.vn, hlu.edu.vn and tuvanhuongnghiep.vn.
Host names with two IP numbers:
ns-b1.tenten.vn: 2404:f080:1101:321:a150:95:110:1230 and 137.59.104.67
ns-b2.tenten.vn: 2404:f080:1101:321:a150:95:110:1231 and 137.59.104.68
ns-b3.tenten.vn: 2404:f080:1101:321:a150:95:110:1232 and 163.44.207.21
Mail Servers
topsmart.vn is handled by a single mail server, mail.topsmart.vn.
Host name mail.topsmart.vn points to IP 150.95.110.205.