`cungbuoc.com`

DNSSEC	⚠️ Not signed
A	112.213.89.126^{🇻🇳 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	`ns89126.dotvndns.vn`
NS	`ns1.icreate.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.icreate.vn`
		A	222.255.121.247^{🇻🇳 VDC222.255.121.0/24 VNPT}
			PTR	`static.vdc.vn`
			PTR	`static.vnpt.vn`
MX	`mail.cungbuoc.com` ⭐
		A	112.213.89.126^{🇻🇳 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	`ns89126.dotvndns.vn`
TXT	`v=spf1 a mx ~all`
SOA	`ns1.icreate.vn`hostmaster@cungbuoc.com 2022-08-02 #1

`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=1778509556

Subdomains

mail.cungbuoc.com

DNS History

7 records (4 active, 3 former)

○NSns1.dotvndns.vn2015-07-18 → 2016-02-12 · 5 obs

● 2015-07-18 03:50:50
○ 2015-11-19 18:56:42
● 2016-02-12 20:46:00
○ 2016-08-19 04:06:52
○ 2026-05-11 14:49:28

●NSns1.icreate.vn2015-07-18 → 2026-05-11 · 5 obs

● 2015-07-18 03:50:50
● 2015-11-19 18:56:42
○ 2016-02-12 20:46:00
● 2016-08-19 04:06:52
● 2026-05-11 14:49:28

○NSns2.dotvndns.vn2016-02-12 → 2016-02-12 · 4 obs

○ 2015-11-19 18:56:42
● 2016-02-12 20:46:00
○ 2016-08-19 04:06:52
○ 2026-05-11 14:49:28

●NSns2.icreate.vn2015-07-18 → 2026-05-11 · 5 obs

● 2015-07-18 03:50:50
● 2015-11-19 18:56:42
○ 2016-02-12 20:46:00
● 2016-08-19 04:06:52
● 2026-05-11 14:49:28

●MXmail.cungbuoc.com2015-07-18 → 2026-05-11 · 2 obs

● 2015-07-18 03:50:50
● 2026-05-11 14:49:28

●A112.213.89.1262017-05-13 → 2026-05-11 · 3 obs

○ 2016-08-19 04:06:52
● 2017-05-13 17:08:50
● 2026-05-11 14:49:28

○A112.213.94.572015-07-18 → 2016-08-19 · 4 obs

● 2015-07-18 03:50:50
● 2016-08-19 04:06:52
○ 2017-05-13 17:08:50
○ 2026-05-11 14:49:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
cungbuoc.com	ns1.icreate.vn, ns2.icreate.vn	-

✅ Authoritative Response

Server:112.213.89.3

NS records: ns1.icreate.vn, ns2.icreate.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cungbuoc.com (unsigned zone)

⏱️ Timing

Total: 1491ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`112.213.89.126`
NS	2	`ns1.icreate.vn, ns2.icreate.vn`
MX	1	`mail.cungbuoc.com (pri: 10)`
TXT	1	`v=spf1 a mx ~all`
SOA	1	`ns1.icreate.vn hostmaster.cungbuoc.com`

Analysis

Hierarchy

The parent of mail.cungbuoc.com is cungbuoc.com.

IP Addresses

cungbuoc.com points to a single IP: 112.213.89.126.

Other host names, for instance www.viedu.edu.vn, getracocorp.com.vn, tructhuanthanh.com, 717architects.com and canthanh.com.vn share IP numbers with cungbuoc.com.

Name Servers

Two name servers ns1.icreate.vn and ns2.icreate.vn handle delegation for cungbuoc.com.

cungbuoc.com shares the same name server setup as other domains, for example montessori.org.vn.

cungbuoc.com partially shares name servers with other domains; examples include cubes-asia.vn, mvec.org.vn, tewc.com.vn, 717architects.com and vied.edu.vn.

These name servers are commonly used with the name servers ns3.icreate.vn, ns4.icreate.vn, nsbak.dotvndns.com, ns1.dotvndns.vn and ns2.dotvndns.vn.

Host names with one IP number: The host name ns1.icreate.vn points to 112.213.89.3 and the host name ns2.icreate.vn points to 222.255.121.247.

Mail Servers

cungbuoc.com is handled by a single mail server, mail.cungbuoc.com.

mail.cungbuoc.com points to a single IP: 112.213.89.126.

cungbuoc.com - robtex.com

cungbuoc.com

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