`duca.com.vn`

DNSSEC	⚠️ Not signed
A	210.2.88.139^{🇻🇳 QTSP210.2.88.0/24 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	`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`
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	`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`
MX	`mail9216.maychuemail.com` ⭐
		A	112.213.92.16^{🇻🇳 SUPERDATA112.213.92.0/24 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	`mail9216.maychuemail.com`
MX	`mx9216.maychuemail.net`⁽¹⁰⁾
		A	112.213.92.16^{🇻🇳 SUPERDATA112.213.92.0/24 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	`mail9216.maychuemail.com`
TXT	`v=spf1 include:spf.maychuemail.com ~all`
SOA	`ns3.dotvndns.vn`hostmaster@duca.com.vn 2026-03-03 #20

`com.vn`

	DNSSEC	⚠️ Not signed
	NS	`dns-master.vnnic.vn` ⭐
	NS	`a.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`b.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`c.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`d.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`e.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`f.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`g.dns-servers.vn` ⚠️ Not in parent delegation
	NS	`h.dns-servers.vn` ⚠️ Not in parent delegation
	SOA	`dns-master.vnnic.vn`postmaster@vnnic.vn serial=2022701430

Same first word

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duca.email

duca.co

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duac.eu

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udca.info

cuad.info

ucad.nl

aucd.net.au

cuda.ca

cadu.org.uk

udca.fr

cuda.biz

uadc.cn

ucad.net

duac.net

dacu.co.uk

duac.pl

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dacu.nl

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cuda.tw

cuda.mobi

cuda.academy

audc.kr

cadu.com.cn

duac.tw

cadu.nl

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duac.com.sg

dacu.be

cuda.support

DNS History

7 records (7 active, 0 former)

●NSns1.dotvndns.vn2026-05-01 → 2026-05-06 · 2 obs

● 2026-05-01 11:17:08
● 2026-05-06 07:21:38

●NSns2.dotvndns.vn2026-05-01 → 2026-05-06 · 2 obs

● 2026-05-01 11:17:08
● 2026-05-06 07:21:38

●NSns3.dotvndns.vn2026-05-01 → 2026-05-06 · 2 obs

● 2026-05-01 11:17:08
● 2026-05-06 07:21:38

●NSnsbak.dotvndns.com2026-05-01 → 2026-05-06 · 2 obs

● 2026-05-01 11:17:08
● 2026-05-06 07:21:38

●MXmail9216.maychuemail.com2026-05-01 → 2026-05-06 · 2 obs

● 2026-05-01 11:17:08
● 2026-05-06 07:21:38

●MXmx9216.maychuemail.net2026-05-01 → 2026-05-06 · 2 obs

● 2026-05-01 11:17:08
● 2026-05-06 07:21:38

●A210.2.88.1392026-05-01 → 2026-05-06 · 2 obs

● 2026-05-01 11:17:08
● 2026-05-06 07:21:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	b.dns-servers.vn, d.dns-servers.vn, f.dns-servers.vn, a.dns-servers.vn...	-
duca.com.vn	ns2.dotvndns.vn, ns1.dotvndns.vn, nsbak.dotvndns.com, ns3.dotvndns.vn	-

✅ Authoritative Response

Server:222.255.121.247

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duca.com.vn (unsigned zone)

⏱️ Timing

Total: 3135ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`210.2.88.139`
NS	4	`nsbak.dotvndns.com, ns3.dotvndns.vn...`
MX	2	`mx9216.maychuemail.net (pri: 10), mail9216.maychuemail.com (pri: 5)`
TXT	1	`v=spf1 include:spf.maychuemail.com ~all`
SOA	1	`ns3.dotvndns.vn hostmaster.duca.com.vn`

Analysis

IP Addresses

duca.com.vn points to a single IP: 210.2.88.139.

Other host names, for instance delivery-media-api.pycom.vn, smartcargo.vn, dms-demo-api.pycom.vn, ktg-el.pycom.vn and identity-ktg-tms.pycom.vn share IP numbers with duca.com.vn.

Name Servers

duca.com.vn is delegated to four name servers: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn and ns3.dotvndns.vn.

duca.com.vn at least partially shares its name servers with other domains, for instance dugarco.com.vn, lepetitmusee.edu.vn, imexpharm.com, astech-vn.com and hoachatxulynuoc.com.

These name servers are commonly used with ns1.pavietnam.vn, ns2.pavietnam.vn and nsbak.pavietnam.net.

Host names with two IP numbers:

The host name nsbak.dotvndns.com points to: 2406:9c80::9000:302 and 112.213.89.22.

The host name ns1.dotvndns.vn points to: 2406:9c80::66 and 112.213.89.3.

The host name ns2.dotvndns.vn points to: 2406:9c80::9000:111 and 222.255.121.247.

Host names with one IP number:

The host name ns3.dotvndns.vn points to: 112.213.89.22.

Host names that point to 112.213.89.22: nsbak.dotvndns.com and ns3.dotvndns.vn.

Mail Servers

Two mail servers mail9216.maychuemail.com and mx9216.maychuemail.net handle duca.com.vn.

duca.com.vn uses the same mail server setup as other domains such as bradfordaccess.com.vn, locnamviet.com, 911.com.vn, berjayavietnam.com and ttpchemicals.vn.

duca.com.vn shares some mail servers with other domains, including shinaji.vn, vietexcursions.com, baonguyenfood.vn, tathaco.com.vn and dba.com.vn.

These mail servers are often used alongside the mail servers mail93100.maychuemail.com.

Host names with one IP number: mail9216.maychuemail.com and mx9216.maychuemail.net point to 112.213.92.16.

duca.com.vn - robtex.com

duca.com.vn

com.vn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`duca.com.vn`

`com.vn`