`ducmanhgroup.com`

DNSSEC	⚠️ Not signed
A	103.68.251.144^{🇻🇳 POWERNET-VN103.68.248.0/22}
		PTR	`sv1144.powernet.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`
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`
MX	`mail.ducmanhgroup.com` ⭐
		A	103.68.251.144^{🇻🇳 POWERNET-VN103.68.248.0/22}
			PTR	`sv1144.powernet.vn`
TXT	`v=spf1 a mx ~all`
SOA	`nsbak.dotvndns.com`hostmaster@ducmanhgroup.com 2026-02-25 #33

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1778115756

Subdomains

www.ducmanhgroup.com

mail.ducmanhgroup.com

Same first word

ducmanhgroup.com

Similar names

manhducgroup.vn

DNS History

8 records (5 active, 3 former)

●NSns1.dotvndns.vn2015-07-22 → 2026-05-07 · 2 obs

● 2015-07-22 12:18:46
● 2026-05-07 01:15:22

●NSns2.dotvndns.vn2015-07-22 → 2026-05-07 · 2 obs

● 2015-07-22 12:18:46
● 2026-05-07 01:15:22

●NSnsbak.dotvndns.com2020-02-28 → 2026-05-07 · 3 obs

○ 2015-07-22 12:18:46
● 2020-02-28 14:15:42
● 2026-05-07 01:15:22

●MXmail.ducmanhgroup.com2015-07-22 → 2026-05-07 · 2 obs

● 2015-07-22 12:18:46
● 2026-05-07 01:15:22

○A103.168.52.2342026-02-17 → 2026-02-17 · 4 obs

○ 2020-02-28 14:15:42
● 2026-02-17 18:40:14
○ 2026-03-18 11:54:36
○ 2026-05-07 01:15:22

●A103.68.251.1442026-03-18 → 2026-05-07 · 3 obs

○ 2026-02-17 18:40:14
● 2026-03-18 11:54:36
● 2026-05-07 01:15:22

○A112.213.89.402015-11-25 → 2020-02-28 · 5 obs

○ 2015-07-22 12:18:46
● 2015-11-25 20:59:38
● 2020-02-28 14:15:42
○ 2026-02-17 18:40:14
○ 2026-05-07 01:15:22

○A113.52.37.512015-07-22 → 2015-07-22 · 3 obs

● 2015-07-22 12:18:46
○ 2015-11-25 20:59:38
○ 2026-05-07 01:15:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
ducmanhgroup.com	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn	2 records

✅ Authoritative Response

Server:112.213.89.22

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ducmanhgroup.com (unsigned zone)

⏱️ Timing

Total: 1331ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.68.251.144`
NS	3	`ns1.dotvndns.vn, nsbak.dotvndns.com...`
MX	1	`mail.ducmanhgroup.com (pri: 10)`
TXT	1	`v=spf1 a mx ~all`
SOA	1	`nsbak.dotvndns.com hostmaster.ducmanhgro`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (nsbak.dotvndns.com, nsbak.dotvndns.com)

Analysis

Hierarchy

ducmanhgroup.com is parent of www.ducmanhgroup.com and mail.ducmanhgroup.com.

IP Addresses

ducmanhgroup.com points to a single IP: 103.68.251.144.

Other host names, for instance mail.ducmanhgroup.com, micome.com.vn, thangoptrangacmai.com, ytethanhtam.com and www.ducmanhgroup.com share IP numbers with ducmanhgroup.com.

Name Servers

ducmanhgroup.com is delegated to three name servers: nsbak.dotvndns.com, ns1.dotvndns.vn and ns2.dotvndns.vn.

ducmanhgroup.com at least partially shares its name servers with other domains, for instance ketnoicongnghe.com.vn, keeng.net, trungkienparasol.com, baolongfwd.com and hkdvietnam.com.

these name servers are commonly used with the name servers ns1.pavietnam.vn, ns3.dotvndns.vn, ns2.pavietnam.vn, nsbak.pavietnam.net and nsbak.dotvndns.vn.

Host names with two IP numbers:

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

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

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

Mail Servers

ducmanhgroup.com is served by a single mail server, mail.ducmanhgroup.com.

mail.ducmanhgroup.com points to IP number 103.68.251.144.

ducmanhgroup.com - robtex.com