itsmart.com.vn - robtex.com
itsmart.com.vn
com.vn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | b.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | c.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | d.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | e.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | f.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | g.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | h.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2022704361 | ||||||
Subdomains
mail.itsmart.com.vn |
cpcontacts.itsmart.com.vn |
webmail.itsmart.com.vn |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●MXmail.itsmart.com.vn2026-05-01 → 2026-05-07 · 2 obs
● 2026-05-07 21:34:18
●A103.18.6.392026-05-01 → 2026-05-07 · 2 obs
● 2026-05-07 21:34:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | c.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn... | - |
| itsmart.com.vn | ns-b3.tenten.vn, ns-b2.tenten.vn, ns-b1.tenten.vn | - |
✅ Authoritative Response
Server:137.59.104.67
NS records: ns-b3.tenten.vn, ns-b2.tenten.vn, ns-b1.tenten.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for itsmart.com.vn (unsigned zone)
⏱️ Timing
Total: 1956ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.18.6.39 |
| NS | 3 | ns-b3.tenten.vn, ns-b2.tenten.vn... |
| MX | 1 | mail.itsmart.com.vn (pri: 10) |
| TXT | 2 | v=spf1 mx a ip4:103.18.6.39 ~all, google-site-verification=mhbzQ6C5Q-khTuk |
| SOA | 1 | ns-b3.tenten.vn noreply.tenten.vn |
Analysis
Hierarchy
itsmart.com.vn is a parent of mail.itsmart.com.vn, cpcontacts.itsmart.com.vn and webmail.itsmart.com.vn.
IP Addresses
itsmart.com.vn points to a single IP: 103.18.6.39.
Other host names, for instance cpanel.huyndaihatinh.com.vn, webdisk.hyundaihatinh3s.com.vn, cpcalendars.huyndaihatinh.com.vn, vn.sonicpost.net and daoxuantung.id.vn share IP numbers with itsmart.com.vn.
Name Servers
itsmart.com.vn is delegated to three name servers: ns-b1.tenten.vn, ns-b2.tenten.vn and ns-b3.tenten.vn.
itsmart.com.vn partially shares name servers with other domains; examples include maytinhbotui.vn, saparis.vn, vinfastquan12.vn, pteciti.edu.vn and avenuegarden.com.vn.
Host names with two IP numbers:
ns-b1.tenten.vn points to 2404:f080:1101:321:a150:95:110:1230 and 137.59.104.67.
ns-b2.tenten.vn points to 2404:f080:1101:321:a150:95:110:1231 and 137.59.104.68.
ns-b3.tenten.vn points to 2404:f080:1101:321:a150:95:110:1232 and 163.44.207.21.
Mail Servers
itsmart.com.vn is handled by a single mail server, mail.itsmart.com.vn.
mail.itsmart.com.vn points to a single IP: 103.18.6.39.