b2u.vn - robtex.com
b2u.vn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.221.221.30🇻🇳 AZDIGI-AS-VN103.221.220.0/22 AZDIGI-VN | ||||||
| NS | ns1.matbao.vn ⭐ | ||||||
| A | 13.250.228.99🇸🇬 Amazon13.250.0.0/15 EC2 SIN prefix | ||||||
| PTR | ec2-13-250-228-99.ap-southeast-1.compute.amazonaws.com | ||||||
| A | 103.110.128.60🇻🇳 AXYS-VN103.110.128.0/23 | ||||||
| NS | ns2.matbao.vn | ||||||
| A | 35.198.203.127🇸🇬 Google35.198.192.0/20 | ||||||
| PTR | 127.203.198.35.bc.googleusercontent.com | ||||||
| A | 103.138.89.11🇻🇳 VNPT-AS-VN103.138.88.0/23 VNPT-NET | ||||||
| MX | mail.b2u.vn ⭐ | ||||||
| TXT | google-site-verification=IFz3QbWD313IRm0zArekghc2gOxeOjZUI5EFa6_OL6Y | ||||||
| SOA | ns1.matbao.vnadmin@matbao.com 2025-10-19 #1 | ||||||
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=2030753591 | ||||||
Subdomains
Same first word
b2u.be |
b2u.de |
b2u.media |
b2u.net |
b2u.pt |
b2u.com.au |
b2u.email |
b2u.eu |
b2u.nl |
b2u.co.uk |
b2u.at |
b2u.online |
b2u.vn |
b2u.biz |
b2u.cz |
b2u.sk |
b2u.es |
b2u.solutions |
b2u.company |
b2u.academy |
b2u.com |
b2u.co |
b2u.it |
b2u.fr |
b2u.ru |
b2u.me |
Similar names
DNS History
4 records (4 active, 0 former)
●MXmail.b2u.vn2026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 23:28:56
●A103.221.221.302026-05-01 → 2026-05-09 · 2 obs
● 2026-05-09 23:28:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn... | - |
| b2u.vn | ns1.matbao.vn, ns2.matbao.vn | 2 records |
✅ Authoritative Response
Server:103.138.89.11
NS records: ns1.matbao.vn, ns2.matbao.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for b2u.vn (unsigned zone)
⏱️ Timing
Total: 1173ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.221.221.30 |
| NS | 2 | ns1.matbao.vn, ns2.matbao.vn |
| MX | 1 | mail.b2u.vn (pri: 10) |
| TXT | 1 | google-site-verification=IFz3QbWD313IRm0 |
| 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
b2u.vn is a parent of www.b2u.vn and mail.b2u.vn.
IP Addresses
b2u.vn resolves to one IP number: 103.221.221.30.
other host names including munich.vn, viva.edu.vn, cpanel.viva.edu.vn, mtparts.vn and mail.iacseo.com share IP numbers with b2u.vn.
Name Servers
b2u.vn is delegated to two name servers ns1.matbao.vn and ns2.matbao.vn.
b2u.vn shares the same name server setup as other domains, for instance dieungaf-b.vn, vulecuongphat.vn, gheandam.vn, tdcons.vn and aimplus.vn.
b2u.vn at least partially shares name servers with other domains, for instance beyours.vn, carjobs.vn, chieusangphuthang.com.vn, vtctelecom.com.vn and enxanh.com.vn.
These name servers are commonly used with ns1.matbao.com, ns2.matbao.com, ns-bak.matbao.com, ns3.matbao.vn and ns4.matbao.vn.
Host names with two IP numbers:
The host name ns1.matbao.vn points to 13.250.228.99 and 103.110.128.60; the host name ns2.matbao.vn points to 35.198.203.127 and 103.138.89.11.