`openbroker.vn`

DNSSEC	⚠️ Not signed
A	103.75.184.25^{🇻🇳 VNPT-AS-VN103.75.184.0/22 Inet software one member company limited INETSOFT-VN}
NS	`ns1.matbao.vn` ⭐
		A	13.250.228.99^{🇸🇬 Amazon13.250.0.0/15 EC2 SIN prefix}
			PTR	`ec2-13-250-228-99.ap-southeast-1.compute.amazonaws.com`
		A	103.110.128.60^{🇻🇳 AXYS-VN103.110.128.0/23}
NS	`ns2.matbao.vn`
		A	35.198.203.127^{🇸🇬 Google35.198.192.0/20}
			PTR	`127.203.198.35.bc.googleusercontent.com`
		A	103.138.89.11^{🇻🇳 VNPT-AS-VN103.138.88.0/23 VNPT-NET}
NS	`ns3.matbao.vn` ⚠️ Not in zone NS records
		A	13.250.228.99^{🇸🇬 Amazon13.250.0.0/15 EC2 SIN prefix}
			PTR	`ec2-13-250-228-99.ap-southeast-1.compute.amazonaws.com`
		A	103.110.128.60^{🇻🇳 AXYS-VN103.110.128.0/23}
NS	`ns4.matbao.vn` ⚠️ Not in zone NS records
		A	103.138.89.11^{🇻🇳 VNPT-AS-VN103.138.88.0/23 VNPT-NET}
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c0b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f26.1e100.net`
		A	142.251.111.27^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2607:f8b0:4023:2801::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`lcausi-in-f27.1e100.net`
		A	192.178.128.27^{🇺🇸 Google192.178.128.0/24}
			PTR	`lcausi-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c00::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`ws-in-f26.1e100.net`
			PTR	`ws-in-x1a.1e100.net`
		A	173.194.76.27^{🇺🇸 Google173.194.76.0/24}
			PTR	`ws-in-f27.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`ns1.matbao.vn`admin@matbao.com 2026-04-14 #1

`vn`

	DNSSEC	⚠️ Not signed
	NS	`dns-master.vnnic.vn` ⭐
	NS	`a.dns-servers.vn`
	NS	`b.dns-servers.vn`
	NS	`c.dns-servers.vn`
	NS	`d.dns-servers.vn`
	NS	`e.dns-servers.vn`
	NS	`f.dns-servers.vn`
	NS	`g.dns-servers.vn`
	NS	`h.dns-servers.vn`
	SOA	`dns-master.vnnic.vn`postmaster@vnnic.vn serial=2030753463

Same first word

openbroker.com

openbroker.vn

openbroker.be

DNS History

10 records (10 active, 0 former)

●NSns1.matbao.vn2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 15:35:12
● 2026-05-09 18:36:12

●NSns2.matbao.vn2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 15:35:12
● 2026-05-09 18:36:12

●NSns3.matbao.vn2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 15:35:12
● 2026-05-09 18:36:12

●NSns4.matbao.vn2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 15:35:12
● 2026-05-09 18:36:12

●MXalt1.aspmx.l.google.com2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 15:35:12
● 2026-05-09 18:36:12

●MXalt2.aspmx.l.google.com2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 15:35:12
● 2026-05-09 18:36:12

●MXalt3.aspmx.l.google.com2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 15:35:12
● 2026-05-09 18:36:12

●MXalt4.aspmx.l.google.com2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 15:35:12
● 2026-05-09 18:36:12

●MXaspmx.l.google.com2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 15:35:12
● 2026-05-09 18:36:12

●A103.75.184.252026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 15:35:12
● 2026-05-09 18:36:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	b.dns-servers.vn, a.dns-servers.vn, f.dns-servers.vn, e.dns-servers.vn...	-
openbroker.vn	ns1.matbao.vn, ns4.matbao.vn, ns3.matbao.vn, ns2.matbao.vn	2 records

✅ Authoritative Response

Server:13.250.228.99

NS records: ns1.matbao.vn, ns4.matbao.vn, ns3.matbao.vn, ns2.matbao.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openbroker.vn (unsigned zone)

⏱️ Timing

Total: 2357ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.75.184.25`
NS	2	`ns2.matbao.vn, ns1.matbao.vn`
MX	5	`ALT3.ASPMX.L.GOOGLE.COM (pri: 10), ALT2.ASPMX.L.GOOGLE.COM (pri: 5)...`
TXT	1	`v=spf1 include:_spf.google.com ~all`
SOA	1	`ns1.matbao.vn admin.matbao.com`

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

openbroker.vn resolves to one IP number: 103.75.184.25.

other host names including www.duhochdt.petviet.vn, webp.click.edu.vn, view360.duy9.name.vn, webdisk.duhochdt.edu.vn and quannntumlcc.here.io.vn share IP numbers with openbroker.vn.

Name Servers

openbroker.vn is delegated to four name servers: ns1.matbao.vn, ns2.matbao.vn, ns3.matbao.vn and ns4.matbao.vn.

openbroker.vn at least partially shares name servers with other domains, for instance vpphailong.vn, alphachem.vn, denledsvlight.com, nomnom.vn and phimonline.vn.