chamtoeic.edu.vn - robtex.com
chamtoeic.edu.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.221.220.207🇻🇳 AZDIGI-AS-VN103.221.220.0/22 AZDIGI-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 | ||||||
| MX | mail.chamtoeic.edu.vn ⭐ | ||||||
| A | 103.221.220.207🇻🇳 AZDIGI-AS-VN103.221.220.0/22 AZDIGI-VN | ||||||
| TXT | v=spf1 mx a ip4:103.221.220.207 ~all | ||||||
| SOA | ns-master.inet.vnpostmaster@inet.vn 2015-07-28 #0 | ||||||
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=2018565248 | ||||||
Subdomains
Same first word
chamtoeic.edu.vn |
Similar names
DNS History
6 records (6 active, 0 former)
●NSns-master.inet.vn2026-04-30 → 2026-05-12 · 2 obs
● 2026-05-12 04:54:20
●MXmail.chamtoeic.edu.vn2026-04-30 → 2026-05-12 · 2 obs
● 2026-05-12 04:54:20
●A103.221.220.2072026-04-30 → 2026-05-12 · 2 obs
● 2026-05-12 04:54:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| chamtoeic.edu.vn | ns1.inet.vn, ns2.inet.vn, ns3.inet.vn | - |
✅ 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 chamtoeic.edu.vn (unsigned zone)
⏱️ Timing
Total: 4179ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.221.220.207 |
| NS | 3 | ns2.inet.vn, ns1.inet.vn... |
| MX | 1 | mail.chamtoeic.edu.vn (pri: 0) |
| TXT | 1 | v=spf1 mx a ip4:103.221.220.207 ~all |
| SOA | 1 | ns-master.inet.vn postmaster.inet.vn |
Analysis
Hierarchy
chamtoeic.edu.vn is a parent of mail.chamtoeic.edu.vn and www.chamtoeic.edu.vn.
IP Addresses
chamtoeic.edu.vn points to IP number: 103.221.220.207.
Other host names, for instance mail.chamtoeic.edu.vn share IP numbers with chamtoeic.edu.vn.
Name Servers
chamtoeic.edu.vn is delegated to four name servers: ns-master.inet.vn, ns1.inet.vn, ns2.inet.vn and ns3.inet.vn.
chamtoeic.edu.vn at least partially shares name servers with other domains, for instance bietthudep.com.vn, quangvinhfb.store, tongkhotamnhua.com.vn, nhatnam203.id.vn and thegioibaoholaodong.vn.
Two IPs per host:
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
One IP per host:
ns-master.inet.vn points to 202.92.4.8
Mail Servers
chamtoeic.edu.vn is handled by a single mail server, mail.chamtoeic.edu.vn.
mail.chamtoeic.edu.vn points to a single IP: 103.221.220.207.