`api.upos.vn`

	DNSSEC	⚠️ Not signed
	A	14.225.194.69^{🇻🇳 VNPT-AS-VN14.225.194.0/24 VNPT}

`upos.vn`

	DNSSEC	⚠️ Not signed
	A	14.225.194.65^{🇻🇳 VNPT-AS-VN14.225.194.0/24 VNPT}
	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	`mx1.feishu.cn` ⭐
	MX	`mx2.feishu.cn`⁽⁵⁾
	MX	`mx3.feishu.cn`⁽¹⁰⁾
	TXT	`v=spf1 +include:_netblocks.m.feishu.cn -all`
	SOA	`ns1.matbao.com`admin@matbao.com 2026-04-04 #2

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DNS History

1 record (1 active, 0 former)

●A14.225.194.692026-05-01 → 2026-05-11 · 2 obs

● 2026-05-01 08:15:22
● 2026-05-11 05:14:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	b.dns-servers.vn, e.dns-servers.vn, h.dns-servers.vn, g.dns-servers.vn...	-
upos.vn	ns1.matbao.vn, ns2.matbao.vn	2 records

✅ Authoritative Response

Server:13.250.228.99

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for upos.vn (unsigned zone)

⏱️ Timing

Total: 1247ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`14.225.194.69`

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

api.upos.vn points to a single IP: 14.225.194.69.

api.upos.vn - robtex.com

api.upos.vn

upos.vn