`mail.viethantech.com`

CNAME	`pro26.emailserver.vn`
DNSSEC	⚠️ Not signed
A	103.110.129.126^{🇻🇳 AXYS-VN103.110.128.0/23}
		PTR	`pro26.emailserver.vn`

`viethantech.com`

	DNSSEC	⚠️ Not signed
	A	103.221.223.75^{🇻🇳 AZDIGI-AS-VN103.221.220.0/22 AZDIGI-VN}
	NS	`ns1.matbao.com` ⭐
	NS	`ns2.matbao.com`
	MX	`pro26.emailserver.vn` ⭐
	TXT	`v=spf1 mx include:emailserver.vn include:spf.protection.outlook.com -all`
	SOA	`ns1.matbao.com`admin@matbao.com 2024-11-05 #2

Same first word

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DNS History

1 record (1 active, 0 former)

●CNAMEpro26.emailserver.vn2026-03-17 → 2026-03-29 · 2 obs

● 2026-03-17 03:13:10
● 2026-03-29 08:58:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, e.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net...	-
viethantech.com	ns1.matbao.com, ns2.matbao.com	4 records

✅ Authoritative Response

Server:103.138.89.11

NS records: ns1.matbao.com, ns2.matbao.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for viethantech.com (unsigned zone)

⏱️ Timing

Total: 730ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`pro26.emailserver.vn`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.matbao.com, ns1.matbao.com, ns2.matbao.com...)

Analysis

IP Addresses

mail.viethantech.com resolves to a single IP address: 103.110.129.126.

Other host names, for instance pro26.emailserver.vn, share IP numbers with mail.viethantech.com.

mail.viethantech.com - robtex.com