`mail.topcin.com.vn`

	DNSSEC	⚠️ Not signed
	A	202.92.4.12^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN}

`topcin.com.vn`

	DNSSEC	⚠️ Not signed
	A	202.92.4.12^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN}
	NS	`ns1.pavietnam.vn` ⭐
	NS	`ns2.pavietnam.vn`
	NS	`nsbak.pavietnam.net`
	MX	`mail.topcin.com.vn` ⭐
	TXT	`v=spf1 a mx ~all`
	SOA	`ns1.pavietnam.vn`hostmaster@topcin.com.vn 2024-08-28 #2

MX for

topcin.com.vn

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DNS History

1 record (1 active, 0 former)

●A202.92.4.122026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 17:33:08
● 2026-05-09 23:13:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
topcin.com.vn	nsbak.pavietnam.net, ns2.pavietnam.vn, ns1.pavietnam.vn	-

✅ Authoritative Response

Server:112.213.89.3

NS records: nsbak.pavietnam.net, ns2.pavietnam.vn, ns1.pavietnam.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 2109ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.92.4.12`

Analysis

Mail Server Role

mail.topcin.com.vn functions as a mail server for topcin.com.vn.

IP Addresses

mail.topcin.com.vn resolves to one IP number: 202.92.4.12.

other host names including cshome.vn, webdisk.maiami.com.vn, huongdanviendulich.edu.vn, autodiscover.dichvucholon.vn and dulichthaibinh.net share IP numbers with mail.topcin.com.vn.

mail.topcin.com.vn - robtex.com