`api.obd.vn`

	DNSSEC	⚠️ Not signed
	A	103.28.37.29^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}

`obd.vn`

	DNSSEC	⚠️ Not signed
	A	103.28.37.29^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}
	NS	`apollo.ns.cloudflare.com` ⭐
	NS	`aron.ns.cloudflare.com`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
	TXT	`v=spf1 mx a ip4:103.28.37.29 include:_spf.google.com include:mail.3tbk.vn ~all`
	SOA	`apollo.ns.cloudflare.com`dns@cloudflare.com serial=2403489836

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DNS History

1 record (1 active, 0 former)

●A103.28.37.292026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 18:04:54
● 2026-05-10 20:56:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
obd.vn	aron.ns.cloudflare.com, apollo.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.69

NS records: aron.ns.cloudflare.com, apollo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for obd.vn (unsigned zone)

⏱️ Timing

Total: 819ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.28.37.29`

Analysis

IP Addresses

api.obd.vn points to a single IP number: 103.28.37.29.

other host names for instance www.scada.3tbk.vn, www.phong.3tbk.vn, dinhvi.3tbk.vn, smarttalklongbien.vn and giamsatnuoc.3tbk.vn share IP numbers with api.obd.vn.

api.obd.vn - robtex.com

api.obd.vn

obd.vn