mail.tcdvn.com - robtex.com

mail.tcdvn.com

DNSSEC⚠️ Not signed
A103.221.221.88🇻🇳 AZDIGI-AS-VN103.221.220.0/22 AZDIGI-VN
PTRmail.vinavietnam.vn

tcdvn.com

DNSSEC⚠️ Not signed
A27.71.232.59🇻🇳 VIETEL-AS-AP27.71.232.0/21 Proxy-registered route object
NSnsbak.dotvndns.com ⭐
NSns1.dotvndns.vn
NSns2.dotvndns.vn
NSns3.dotvndns.vn
MXmail.tcdvn.com ⭐
TXTv=spf1 ip4:103.221.221.88/22 mx ~all
SOAnsbak.dotvndns.comhostmaster@tcdvn.com 2025-09-11 #4

MX for

tcdvn.com

Same first word

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DNS History

1 record (1 active, 0 former)

A103.221.221.88
●A103.221.221.882026-02-16 → 2026-04-13 · 2 obs
● 2026-02-16 22:27:26
● 2026-04-13 12:56:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
tcdvn.comnsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn, ns3.dotvndns.vn2 records

✅ Authoritative Response

Server:112.213.89.3

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tcdvn.com (unsigned zone)

⏱️ Timing

Total: 1537ms | Queries: -

📄 Records

TypeCountSample Data
A1103.221.221.88

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)

Analysis

Mail Server Role

mail.tcdvn.com is the mail server for tcdvn.com.

IP Addresses

mail.tcdvn.com resolves to one IP number: 103.221.221.88.

other host names including mail.noithatkhanggia.com, mail.baoinox.com, mail.bosswindow.com, mail.hungnguyenauto.com and mail.vinavietnam.vn share IP numbers with mail.tcdvn.com.