a.topcent.com.vn - robtex.com

a.topcent.com.vn

DNSSEC⚠️ Not signed
A103.82.21.170🇻🇳 VNPT-AS-VN103.82.20.0/22 INETACADEMY-AS-VN
PTRmail21170.bmcloud.io.vn

topcent.com.vn

DNSSEC⚠️ Not signed
A103.82.21.170🇻🇳 VNPT-AS-VN103.82.20.0/22 INETACADEMY-AS-VN
NSns3.nina.vn ⭐
NSns1.dotvndns.vn
NSns2.dotvndns.vn
NSns3.dotvndns.vn
NSns4.dotvndns.vn
NSnsbak.dotvndns.com ⚠️ Not in zone NS records
MXmail.topcent.com.vn ⭐
TXTv=spf1 ip4:103.82.21.170 a mx include:_spf.google.com include:topcent.com.vn ...
SOAns3.nina.vnhostmaster@topcent.com.vn 2026-01-27 #7

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DNS History

1 record (1 active, 0 former)

A103.82.21.170
●A103.82.21.1702026-05-01 → 2026-05-11 · 2 obs
● 2026-05-01 15:38:16
● 2026-05-11 10:39:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
vna.dns-servers.vn, f.dns-servers.vn, g.dns-servers.vn, c.dns-servers.vn...-
topcent.com.vnns2.dotvndns.vn, ns1.dotvndns.vn, ns4.dotvndns.vn, ns3.dotvndns.vn...-

✅ Authoritative Response

Server:112.213.89.22

NS records: ns2.dotvndns.vn, ns1.dotvndns.vn, ns4.dotvndns.vn, ns3.dotvndns.vn, nsbak.dotvndns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for topcent.com.vn (unsigned zone)

⏱️ Timing

Total: 2234ms | Queries: -

📄 Records

TypeCountSample Data
A1103.82.21.170

Analysis

IP Addresses

a.topcent.com.vn resolves to one IP number: 103.82.21.170.

other host names including mail.garageductho.com, www.tamly3c.com, mail.ducphabetongducmao.com, mail.phucthinhvuong.vn and mail.hungnganphat.com share IP numbers with a.topcent.com.vn.