thht.edu.vn - robtex.com
thht.edu.vn
edu.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=2018564750 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSns-master.inet.vn2026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 00:21:28
●MXsmtp.google.com2026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 00:21:28
●A103.57.220.2062026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 00:21:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| thht.edu.vn | ns2.inet.vn, ns1.inet.vn, ns3.inet.vn | - |
✅ Authoritative Response
Server:202.92.4.25
NS records: ns2.inet.vn, ns1.inet.vn, ns3.inet.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for thht.edu.vn (unsigned zone)
⏱️ Timing
Total: 1953ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.57.220.206 |
| NS | 3 | ns3.inet.vn, ns2.inet.vn... |
| MX | 1 | SMTP.GOOGLE.COM (pri: 1) |
| SOA | 1 | ns-master.inet.vn postmaster.inet.vn |
Analysis
IP Addresses
thht.edu.vn points to a single IP address: 103.57.220.206.
Other host names such as cn.pnvt.vn, www.duhocducatp.edu.vn, a.kol.com.vn, kol.com.vn and dichtienganh.edu.vn share IPs with thht.edu.vn.
Name Servers
thht.edu.vn is delegated to four name servers: ns-master.inet.vn, ns1.inet.vn, ns2.inet.vn and ns3.inet.vn.
thht.edu.vn at least partially shares name servers with other domains, for example voip.pro.vn, pendolasco.vn, dr.com.vn, thegioidinhvi.vn and ipv.vn.
These name servers are often used together with hcmc3.saigonnet.vn and hcmc4.saigonnet.vn.
Host names with two IP numbers:
ns1.inet.vn points to 2001:df7:ce00:1::7 and 202.92.4.25.
ns2.inet.vn points to 2401:5f80:2001:4::30 and 210.211.99.38.
ns3.inet.vn points to 2401:5f80:4001:4::14 and 203.113.174.42.
Host names with one IP number:
ns-master.inet.vn points to 202.92.4.8.
Mail Servers
The smtp.google.com mail server handles thht.edu.vn.
thht.edu.vn shares the same mail server setup as other domains, including flips.bg, growmylistings.com, spinacz.pl, cwre.nl and ellaqua.com.
thht.edu.vn shares at least partially some mail servers with other domains, for instance studioaisle.com, alphaensure.com, roycemorales.com, jsanand.com and soloinnovations.com.
These mail servers commonly pair with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
The host name smtp.google.com maps to nine IP numbers: 2607:f8b0:4004:c06::1b, 2607:f8b0:4004:c08::1a, 2607:f8b0:4004:c09::1a, 2607:f8b0:4004:c09::1b, 172.253.63.26, 172.253.63.27, 172.253.115.27, 172.253.122.26 and 172.253.122.27.