educrm.edu.vn - robtex.com
educrm.edu.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 139.99.4.60🇸🇬 OVH139.99.0.0/17 Hosting route | ||||||
| PTR | ip60.ip-139-99-4.net | ||||||
| NS | ns1.dotvndns.vn ⭐ ⚠️ Not in parent delegation | ||||||
| A | 2406:9c80::66🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | ns1.dotvndns.vn | ||||||
| A | 112.213.89.3🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | ns1.dotvndns.vn | ||||||
| NS | ns1.phuongnamdigital.com ⚠️ Not in zone NS records | ||||||
| A | 112.213.89.3🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | ns1.dotvndns.vn | ||||||
| NS | ns2.dotvndns.vn ⚠️ Not in parent delegation | ||||||
| A | 2406:9c80::9000:111🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | ns2.dotvndns.vn | ||||||
| A | 222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT | ||||||
| PTR | static.vdc.vn | ||||||
| PTR | static.vnpt.vn | ||||||
| NS | ns2.phuongnamdigital.com ⚠️ Not in zone NS records | ||||||
| A | 222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT | ||||||
| PTR | static.vdc.vn | ||||||
| PTR | static.vnpt.vn | ||||||
| NS | nsbak.phuongnamdigital.com ⚠️ Not in zone NS records | ||||||
| A | 112.213.89.22🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | ns8922.dotvndns.vn | ||||||
| MX | mail.educrm.edu.vn ⭐ | ||||||
| A | 139.99.4.60🇸🇬 OVH139.99.0.0/17 Hosting route | ||||||
| PTR | ip60.ip-139-99-4.net | ||||||
| TXT | v=spf1 a mx ~all | ||||||
| SOA | ns1.dotvndns.vnhostmaster@educrm.edu.vn 2022-09-14 #2 | ||||||
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=2018565189 | ||||||
Subdomains
mail.educrm.edu.vn |
Same first word
Similar names
DNS History
7 records (7 active, 0 former)
●NSns1.dotvndns.vn2026-04-30 → 2026-05-11 · 2 obs
● 2026-05-11 20:54:08
●NSns1.phuongnamdigital.com2026-04-30 → 2026-05-11 · 2 obs
● 2026-05-11 20:54:08
●NSns2.dotvndns.vn2026-04-30 → 2026-05-11 · 2 obs
● 2026-05-11 20:54:08
●NSns2.phuongnamdigital.com2026-04-30 → 2026-05-11 · 2 obs
● 2026-05-11 20:54:08
●NSnsbak.phuongnamdigital.com2026-04-30 → 2026-05-11 · 2 obs
● 2026-05-11 20:54:08
●MXmail.educrm.edu.vn2026-04-30 → 2026-05-11 · 2 obs
● 2026-05-11 20:54:08
●A139.99.4.602026-04-30 → 2026-05-11 · 2 obs
● 2026-05-11 20:54:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | e.dns-servers.vn, f.dns-servers.vn, g.dns-servers.vn, d.dns-servers.vn... | - |
| educrm.edu.vn | ns1.phuongnamdigital.com, nsbak.phuongnamdigital.com, ns2.phuongnamdigital.com | - |
✅ Authoritative Response
Server:112.213.89.22
NS records: ns1.phuongnamdigital.com, nsbak.phuongnamdigital.com, ns2.phuongnamdigital.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for educrm.edu.vn (unsigned zone)
⏱️ Timing
Total: 1460ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 139.99.4.60 |
| NS | 2 | ns2.dotvndns.vn, ns1.dotvndns.vn |
| MX | 1 | mail.educrm.edu.vn (pri: 10) |
| TXT | 1 | v=spf1 a mx ~all |
| SOA | 1 | ns1.dotvndns.vn hostmaster.educrm.edu.vn |
Analysis
Hierarchy
mail.educrm.edu.vn has educrm.edu.vn as its parent.
IP Addresses
educrm.edu.vn maps to IP address 139.99.4.60.
Other host names, for instance www.vinhloi.com.vn, vieclamnhahang.com.vn, mail.eo.outlook.com.mpe.com.vn, www.luyenthitoefl.net and mail.vemaybay.info share IP numbers with educrm.edu.vn.
Name Servers
educrm.edu.vn delegates to five name servers: ns1.phuongnamdigital.com, ns2.phuongnamdigital.com, nsbak.phuongnamdigital.com, ns1.dotvndns.vn and ns2.dotvndns.vn.
educrm.edu.vn at least partially shares name servers with other domains such as phunucuocsong.vn, motcua.ai.vn, dietmoiphanthiet.com, botda.vn and dienbien.edu.vn.
These name servers are commonly used alongside nsbak.dotvndns.com, ns1.pavietnam.vn, ns3.dotvndns.vn, ns2.pavietnam.vn, nsbak.pavietnam.net, ns1.phuongnamdesign.com and tani.ns.cloudflare.com.
Hostnames with two IP numbers:
ns1.dotvndns.vn points to 2406:9c80::66 and 112.213.89.3
ns2.dotvndns.vn points to 2406:9c80::9000:111 and 222.255.121.247
Hostnames with one IP number:
ns1.phuongnamdigital.com points to 112.213.89.3
ns2.phuongnamdigital.com points to 222.255.121.247
nsbak.phuongnamdigital.com points to 112.213.89.22
Hostnames that point to 112.213.89.3: ns1.dotvndns.vn and ns1.phuongnamdigital.com
Hostnames that point to 222.255.121.247: ns2.dotvndns.vn and ns2.phuongnamdigital.com
Mail Servers
educrm.edu.vn is handled by a single mail server, mail.educrm.edu.vn.
mail.educrm.edu.vn points to one IP number: 139.99.4.60.