`crmx.vn`

DNSSEC	⚠️ Not signed
A	61.28.230.115^{🇻🇳 CMC-461.28.230.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
NS	`nsbak.dotvndns.com` ⭐
		A	2406:9c80::9000:302^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`nsbak.dotvndns.com`
		A	112.213.89.22^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns8922.dotvndns.vn`
NS	`ns1.dotvndns.vn`
		A	2406:9c80::66^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns1.dotvndns.vn`
		A	112.213.89.3^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns1.dotvndns.vn`
NS	`ns2.dotvndns.vn`
		A	2406:9c80::9000:111^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns2.dotvndns.vn`
		A	222.255.121.247^{🇻🇳 VDC222.255.121.0/24 VNPT}
			PTR	`static.vdc.vn`
			PTR	`static.vnpt.vn`
NS	`ns3.dotvndns.vn`
		A	112.213.89.22^{🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
			PTR	`ns8922.dotvndns.vn`
MX	`crmx-vn.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc09::^{🇸🇬 Microsoft2a01:111:f000::/36}
			PTR	`mail-sg2pr03cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1a::8^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-tydpr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1f::4^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-os8pr02cu00104.inbound.protection.outlook.com`
		A	52.101.124.117^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-tydpr03cu00105.inbound.protection.outlook.com`
		A	52.101.137.0^{🇸🇬 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sg2pr03cu00500.inbound.protection.outlook.com`
		A	52.101.157.80^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os8pr02cu00100.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.protection.outlook.com include:_spf.mailersend.net include...`
TXT	`MS=ms96610244`
SOA	`nsbak.dotvndns.com`hostmaster@crmx.vn 2026-04-25 #21

`vn`

	DNSSEC	🔒 Signed (DS record present)
	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=2030987983

Subdomains

dev-apps.crmx.vn

Same first word

crmx.vn

crmx.in

crmx.org

crmx.com.au

crmx.co.uk

crmx.de

crmx.eu

crmx.com

crmx.io

crmx.be

crmx.net

crmx.us

Similar names

mxcr.com

mrxc.com

xcrm.dev

xcrm.nl

xcrm.com.vn

rmxc.net

xrmc.net

mcrx.net

rxmc.com

cxmr.com

mxrc.co.uk

cmrx.com

rmcx.ru

xmrc.com

crxm.com.cn

cxrm.cn

mxrc.za.net

xcrm.com.br

xcrm.fr

cxrm.com

cmrx.net

xcrm.com

crxm.cn

rmcx.com

rcxm.cn

xcrm.de

xmrc.com.cn

rcmx.cn

xcrm.org

mxrc.net

mcxr.cn

mcrx.de

xcrm.co.za

cxmr.cn

cmxr.com

rcmx.de

xcrm.at

mxrc.co.ke

xmcr.com

rmxc.tech

xcrm.biz

rmcx.cn

xmrc.cn

crxm.org

rxcm.net

xcrm.ro

rxmc.kr

cxmr.net

rxcm.com

rcmx.com

rmcx.fi

rcmx.net

xmrc.cc

mcrx.com

mxrc.com

rmxc.com

mxrc.co.za

xcrm.pl

mrcx.com

xcrm.net

rmcx.net

mxrc.cn

xcrm.uz

xrcm.com

mcxr.ru

rcxm.com

xcrm.vn

DNS History

6 records (6 active, 0 former)

●NSns1.dotvndns.vn2026-06-02 → 2026-07-12 · 2 obs

● 2026-06-02 00:33:50
● 2026-07-12 01:52:22

●NSns2.dotvndns.vn2026-06-02 → 2026-07-12 · 2 obs

● 2026-06-02 00:33:50
● 2026-07-12 01:52:22

●NSns3.dotvndns.vn2026-06-02 → 2026-07-12 · 2 obs

● 2026-06-02 00:33:50
● 2026-07-12 01:52:22

●NSnsbak.dotvndns.com2026-06-02 → 2026-07-12 · 2 obs

● 2026-06-02 00:33:50
● 2026-07-12 01:52:22

●MXcrmx-vn.mail.protection.outlook.com2026-06-02 → 2026-07-12 · 2 obs

● 2026-06-02 00:33:50
● 2026-07-12 01:52:22

●A61.28.230.1152026-06-02 → 2026-07-12 · 2 obs

● 2026-06-02 00:33:50
● 2026-07-12 01:52:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	16 records
crmx.vn	ns3.dotvndns.vn, nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn	4 records

✅ Authoritative Response

Server:222.255.121.247

NS records: ns3.dotvndns.vn, nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for crmx.vn (unsigned zone)

⏱️ Timing

Total: 2127ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`61.28.230.115`
NS	4	`nsbak.dotvndns.com, ns2.dotvndns.vn...`
MX	1	`crmx-vn.mail.protection.outlook.com (pri`
TXT	2	`MS=ms96610244, v=spf1 include:spf.protection.outlook.co`
SOA	1	`nsbak.dotvndns.com hostmaster.crmx.vn`

📌 Glue Records Collected

Total: 20

In-bailiwick: 16 (a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn...)

Out-of-bailiwick: 4 (ns1.dotvndns.vn, ns2.dotvndns.vn, ns1.dotvndns.vn...)

Analysis

Hierarchy

The domain dev-apps.crmx.vn falls under the parent crmx.vn.

IP Addresses

crmx.vn has exactly one IP address — 61.28.230.115.

hpntphcm-gdxh.web2b.vn, superflow.vn, aziworld.com plus two other host names have IP numbers in common with crmx.vn.

Name Servers

Four name servers handle the delegation for crmx.vn: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn and ns3.dotvndns.vn.

At least some of crmx.vn's name servers are shared with other domains, for example giaichayphapngu.vn, mdi.vn, thietbisuaoto.com and two more.

These name servers are often deployed together with the name servers ns1.pavietnam.vn, ns2.pavietnam.vn, nsbak.pavietnam.net and ns4.dotvndns.vn.

Host names pointing to two IP addresses:

The A records for nsbak.dotvndns.com return 112.213.89.22 and 2406:9c80::9000:302.

The A records for ns1.dotvndns.vn return 112.213.89.3 and 2406:9c80::66.

The A records for ns2.dotvndns.vn return 222.255.121.247 and 2406:9c80::9000:111.

Host names resolving to a single IP address:

ns3.dotvndns.vn resolves to the IP address 112.213.89.22.

nsbak.dotvndns.com and ns3.dotvndns.vn each have 112.213.89.22 IP addresses.