o365.vn - robtex.com
o365.vn
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=2030757799 | ||||||
Subdomains
www.o365.vn |
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●NSns-bak.matbao.com2019-12-20 → 2026-05-11 · 2 obs
● 2026-05-11 06:08:46
●MXo365-vn.mail.protection.outlook.com2019-12-20 → 2026-05-11 · 2 obs
● 2026-05-11 06:08:46
○A112.78.2.1852019-12-20 → 2019-12-20 · 3 obs
○ 2026-05-01 10:43:14
○ 2026-05-11 06:08:46
●A112.78.2.392026-05-01 → 2026-05-11 · 3 obs
● 2026-05-01 10:43:14
● 2026-05-11 06:08:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| o365.vn | ns1.matbao.vn, ns2.matbao.vn | 2 records |
✅ Authoritative Response
Server:13.250.228.99
NS records: ns1.matbao.vn, ns2.matbao.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for o365.vn (unsigned zone)
⏱️ Timing
Total: 4640ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 112.78.2.39 |
| NS | 3 | ns-bak.matbao.com, ns1.matbao.vn... |
| MX | 1 | o365-vn.mail.protection.outlook.com (pri |
| TXT | 1 | v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns1.matbao.vn admin.matbao.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.matbao.vn, ns1.matbao.vn)
Analysis
Hierarchy
The parent of www.o365.vn is o365.vn.
IP Addresses
o365.vn points to a single IP address: 112.78.2.39.
Other host names such as tanphuvietnam.vn, tacme.com.vn, kimchongset.vn, condao-tourist.com and isora.vn share IPs with o365.vn.
Name Servers
o365.vn is delegated to three name servers: ns-bak.matbao.com, ns1.matbao.vn and ns2.matbao.vn.
o365.vn at least partially shares name servers with other domains, for example alaw.vn, bvduckhang.com, lubbank.vn, vantaithuyhung.vn and vietphattech.vn.
these name servers commonly pair with ns1.matbao.com, ns2.matbao.com, ns3.matbao.vn and ns4.matbao.vn.
Host names with two IPs:
ns1.matbao.vn points to 13.250.228.99 and 103.110.128.60.
ns2.matbao.vn points to 35.198.203.127 and 103.138.89.11.
Host names with one IP:
ns-bak.matbao.com points to 35.198.246.158.
Mail Servers
The o365-vn.mail.protection.outlook.com mail server handles o365.vn.
Host name o365-vn.mail.protection.outlook.com resolves to six IP numbers: 2a01:111:f403:cc09::, 2a01:111:f403:cc1a::8, 2a01:111:f403:cc1f::4, 52.101.124.117, 52.101.137.0 and 52.101.157.80.