a4b.com.vn - robtex.com
a4b.com.vn
com.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=2022708549 | ||||||
Same first word
a4b.com |
a4b.it |
a4b.ru |
a4b.net |
a4b.org |
a4b.biz |
a4b.dk |
a4b.jp |
a4b.pl |
a4b.com.ua |
a4b.vn |
a4b.io |
a4b.co |
a4b.com.vn |
a4b.us-east-1.amazonaws.com |
a4b.gr |
a4b.eu |
a4b.nu |
a4b.be |
a4b.de |
a4b.at |
a4b.sk |
a4b.cn |
a4b.ai |
a4b.info |
a4b.com.au |
Similar names
DNS History
7 records (3 active, 4 former)
○NSns-bak.matbao.com2017-03-27 → 2017-03-27 · 3 obs
○ 2020-02-08 15:22:50
○ 2026-05-10 21:31:46
●NSns1.matbao.vn2017-03-27 → 2026-05-10 · 4 obs
○ 2020-02-08 15:22:50
● 2026-05-08 12:32:18
● 2026-05-10 21:31:46
●NSns2.matbao.vn2017-03-27 → 2026-05-10 · 4 obs
○ 2020-02-08 15:22:50
● 2026-05-08 12:32:18
● 2026-05-10 21:31:46
●MXa4b-com-vn.mail.protection.outlook.com2026-05-08 → 2026-05-10 · 3 obs
● 2026-05-08 12:32:18
● 2026-05-10 21:31:46
○MXmta1.a4b.com.vn2017-03-27 → 2017-03-27 · 3 obs
○ 2020-02-08 15:22:50
○ 2026-05-10 21:31:46
○MXmta2.a4b.com.vn2017-03-27 → 2017-03-27 · 3 obs
○ 2020-02-08 15:22:50
○ 2026-05-10 21:31:46
○A104.199.133.1522017-03-27 → 2017-03-27 · 3 obs
○ 2020-02-08 15:22:50
○ 2026-05-10 21:31:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | c.dns-servers.vn, d.dns-servers.vn, e.dns-servers.vn, a.dns-servers.vn... | - |
| a4b.com.vn | ns2.matbao.vn, ns1.matbao.vn | - |
✅ Authoritative Response
Server:103.138.89.11
NS records: ns2.matbao.vn, ns1.matbao.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for a4b.com.vn (unsigned zone)
⏱️ Timing
Total: 2446ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.matbao.vn, ns2.matbao.vn |
| MX | 1 | a4b-com-vn.mail.protection.outlook.com ( |
| TXT | 2 | MS=ms64625299, v=spf1 mx include:emailserver.vn include |
| SOA | 1 | ns1.matbao.vn admin.matbao.com |
Analysis
Name Servers
a4b.com.vn's delegation uses two name servers: ns1.matbao.vn and ns2.matbao.vn.
a4b.com.vn uses the same name server setup as other domains, such as lovu.vn, echungtu.vn, iready.edu.vn, buzo.vn and hbi.com.vn.
a4b.com.vn at least partially shares name servers with other domains, including xoithit.vn, belleza.vn, dbacoustic.vn, phuanshipping.vn and phutungoto.net.
These name servers are commonly used with ns1.matbao.com, ns2.matbao.com and ns-bak.matbao.com.
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
Mail Servers
A single mail server handles a4b.com.vn, a4b-com-vn.mail.protection.outlook.com.
a4b-com-vn.mail.protection.outlook.com has six IPs: 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.