`mailserver.zeroone.vn`

DNSSEC	⚠️ Not signed
A	125.253.114.250^{🇻🇳 DVS-AS-VN125.253.114.0/24 ODSJSC-VN}
		PTR	`mail.nichietsuvn.com`

`zeroone.vn`

	DNSSEC	⚠️ Not signed
	A	103.98.160.106^{🇻🇳 CLEARSKY-AS-VN103.98.160.0/24 CLEARSKY-VN}
	NS	`ns1.matbao.com` ⭐ ⚠️ Not in parent delegation
	NS	`ns1.matbao.vn` ⚠️ Not in zone NS records
	NS	`ns2.matbao.com` ⚠️ Not in parent delegation
	NS	`ns2.matbao.vn` ⚠️ Not in zone NS records
	MX	`mail.zeroone.vn` ⭐
	TXT	`v=spf1 ip4:125.253.114.250 include:sendgrid.net mx ~all`
	SOA	`ns1.matbao.com`admin@matbao.com 2025-07-04 #2

Same first word

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DNS History

1 record (1 active, 0 former)

●A125.253.114.2502026-04-13 → 2026-04-13 · 2 obs

● 2026-04-13 01:49:48
● 2026-04-13 05:47:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
zeroone.vn	ns1.matbao.vn, ns2.matbao.vn	2 records

✅ Authoritative Response

Server:103.138.89.11

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zeroone.vn (unsigned zone)

⏱️ Timing

Total: 3322ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`125.253.114.250`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.matbao.vn, ns2.matbao.vn)

Analysis

IP Addresses

mailserver.zeroone.vn points to a single IP address: 125.253.114.250.

Other host names, for instance mailserver.nichietsuvn.com, share IP numbers with mailserver.zeroone.vn.

mailserver.zeroone.vn - robtex.com