phonghoc.edu.vn - robtex.com
phonghoc.edu.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 51.79.169.149🇸🇬 OVH51.79.128.0/17 Hosting route | ||||||
| PTR | ip149.ip-51-79-169.net | ||||||
| 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 | ||||||
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=2018564767 | ||||||
Subdomains
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns-master.inet.vn2026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 03:30:58
●A51.79.169.1492026-04-30 → 2026-05-10 · 2 obs
● 2026-05-10 03:30:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| phonghoc.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 phonghoc.edu.vn (unsigned zone)
⏱️ Timing
Total: 1408ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 51.79.169.149 |
| NS | 3 | ns2.inet.vn, ns1.inet.vn... |
| SOA | 1 | ns-master.inet.vn postmaster.inet.vn |
Analysis
Hierarchy
phonghoc.edu.vn is a parent of www.phonghoc.edu.vn and chothue.phonghoc.edu.vn.
IP Addresses
phonghoc.edu.vn points to a single IP: 51.79.169.149.
Other host names, for instance bay.duhocanh.org, d43539e2-92ed-4126-a820-a935d99501e3.vietucschool.edu.vn, luyenthivstep.com, smtp.zhuanti.tiengduc.edu.vn and businesscoach.edu.vn share IP numbers with phonghoc.edu.vn.
Name Servers
phonghoc.edu.vn's delegation is handled by four name servers: ns-master.inet.vn, ns1.inet.vn, ns2.inet.vn and ns3.inet.vn.
phonghoc.edu.vn partially shares name servers with other domains; examples include exssing.com, cuacacham.vn, bsthanh.vn, anhvinhomes.online and oganico.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.