classone.vn - robtex.com
classone.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.57.220.92🇻🇳 VNPT-AS-VN103.57.220.0/22 INET-VN | ||||||
| NS | ns-master.inet.vn ⭐ | ||||||
| A | 202.92.4.8🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN | ||||||
| NS | ns1.inet.vn | ||||||
| A | 2001:df7:ce00:1::7🇻🇳 VNPT-AS-VN2001:df7:ce00::/48 INETSOFT-VN Inet software one member company limited | ||||||
| A | 202.92.4.25🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN | ||||||
| NS | ns2.inet.vn | ||||||
| A | 2401:5f80:2001:4::30🇻🇳 VTDC-AS-VN2401:5f80:2000::/36 VTDC-VN | ||||||
| A | 210.211.99.38🇻🇳 VTDC-AS-VN210.211.99.0/24 Proxy-registered route object | ||||||
| NS | ns3.inet.vn | ||||||
| A | 2401:5f80:4001:4::14🇻🇳 VTDC-AS-VN2401:5f80:4000::/36 VTDC-VN | ||||||
| A | 203.113.174.42🇻🇳 VTDC-AS-VN203.113.174.0/23 VIETTEL-VN | ||||||
| SOA | ns-master.inet.vnpostmaster@inet.vn 2015-07-28 #0 | ||||||
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=2030754386 | ||||||
Subdomains
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns-master.inet.vn2026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 08:58:44
●A103.57.220.922026-05-01 → 2026-05-10 · 2 obs
● 2026-05-10 08:58:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| classone.vn | ns1.inet.vn, ns2.inet.vn, ns3.inet.vn | 3 records |
✅ Authoritative Response
Server:203.113.174.42
NS records: ns1.inet.vn, ns2.inet.vn, ns3.inet.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for classone.vn (unsigned zone)
⏱️ Timing
Total: 1124ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.57.220.92 |
| NS | 3 | ns3.inet.vn, ns1.inet.vn... |
| SOA | 1 | ns-master.inet.vn postmaster.inet.vn |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns1.inet.vn, ns3.inet.vn, ns2.inet.vn)
Analysis
Hierarchy
classone.vn is a parent of www.classone.vn and api.classone.vn.
IP Addresses
classone.vn maps to IP address 103.57.220.92.
Other host names such as api.library.edu.vn, library.edu.vn, www.classone.vn and api.classone.vn share IP numbers with classone.vn.
Name Servers
classone.vn is delegated to four name servers: ns-master.inet.vn, ns1.inet.vn, ns2.inet.vn and ns3.inet.vn.
classone.vn at least partially shares name servers with other domains such as vinhlongxanh.vn, heemangchicken.vn, dtdcorp.vn, libertyseguroswurth.com and edins.edu.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.