`dongminhco.com`

DNSSEC	⚠️ Not signed
A	112.213.86.168^{🇻🇳 SUPERDATA112.213.86.0/24 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	`mail.emailsach.info`
NS	`nsbak.dotvndns.vn` ⭐
		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	`dnsbak.dotvndns.vn`
		A	222.255.121.247^{🇻🇳 VDC222.255.121.0/24 VNPT}
			PTR	`static.vdc.vn`
			PTR	`static.vnpt.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	`mail92206.maychuemail.com` ⭐
		A	112.213.92.206^{🇻🇳 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	`mail92206.maychuemail.com`
TXT	`v=spf1 ip4:112.213.92.228 ip4:112.213.90.186 ip4:112.213.92.208 ip4:112.213.9...`
SOA	`nsbak.dotvndns.vn`hostmaster@dongminhco.com 2025-07-23 #7

`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=1778459851

Subdomains

www.dongminhco.com

mail.dongminhco.com

Same first word

dongminhco.com

DNS History

9 records (7 active, 2 former)

●NSdnsbak.dotvndns.vn2017-03-21 → 2026-05-11 · 3 obs

○ 2015-08-08 19:58:58
● 2017-03-21 09:49:44
● 2026-05-11 00:42:02

●NSns1.dotvndns.vn2015-08-08 → 2026-05-11 · 2 obs

● 2015-08-08 19:58:58
● 2026-05-11 00:42:02

●NSns2.dotvndns.vn2015-08-08 → 2026-05-11 · 2 obs

● 2015-08-08 19:58:58
● 2026-05-11 00:42:02

●NSnsbak.dotvndns.com2026-03-06 → 2026-05-11 · 3 obs

○ 2017-03-21 09:49:44
● 2026-03-06 07:05:50
● 2026-05-11 00:42:02

●NSnsbak.dotvndns.vn2017-03-21 → 2026-05-11 · 3 obs

○ 2015-08-08 19:58:58
● 2017-03-21 09:49:44
● 2026-05-11 00:42:02

○MXmail.dongminhco.com2015-08-08 → 2017-03-21 · 4 obs

● 2015-08-08 19:58:58
● 2017-03-21 09:49:44
○ 2026-03-06 07:05:50
○ 2026-05-11 00:42:02

●MXmail92206.maychuemail.com2026-03-06 → 2026-05-11 · 3 obs

○ 2017-03-21 09:49:44
● 2026-03-06 07:05:50
● 2026-05-11 00:42:02

●A112.213.86.1682026-03-06 → 2026-05-11 · 3 obs

○ 2017-03-21 09:49:44
● 2026-03-06 07:05:50
● 2026-05-11 00:42:02

○A112.213.91.252015-08-08 → 2017-03-21 · 4 obs

● 2015-08-08 19:58:58
● 2017-03-21 09:49:44
○ 2026-03-06 07:05:50
○ 2026-05-11 00:42:02

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:222.255.121.247

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dongminhco.com (unsigned zone)

⏱️ Timing

Total: 2866ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`112.213.86.168`
NS	5	`ns1.dotvndns.vn, nsbak.dotvndns.vn...`
MX	1	`mail92206.maychuemail.com (pri: 10)`
TXT	1	`v=spf1 ip4:112.213.92.228 ip4:112.213.90`
SOA	1	`nsbak.dotvndns.vn hostmaster.dongminhco.`

📌 Glue Records Collected

Total: 2

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

Analysis

Hierarchy

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

IP Addresses

dongminhco.com points to a single IP: 112.213.86.168.

Other host names, for instance phanbongiaphuongphuc.com, anmyhotel.com, xetaihyundai.vn, mail.otodongtay.com and maynenkhibinhduong.vn share IP numbers with dongminhco.com.

Name Servers

dongminhco.com is delegated to five name servers: nsbak.dotvndns.com, dnsbak.dotvndns.vn, ns1.dotvndns.vn, ns2.dotvndns.vn and nsbak.dotvndns.vn.

dongminhco.com at least partially shares its name servers with other domains, for instance naso.com.vn, aty.vn, kmi.com.vn, caosumanhtien.com and kynang.edu.vn.