`didonghaiphong.com`

DNSSEC	⚠️ Not signed
A	112.213.87.21^{🇻🇳 SUPERDATA112.213.87.0/24 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	`mx8721.superdata.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.didonghaiphong.com` ⭐
		A	42.112.31.97^{🇻🇳 FPT-AS-AP42.112.31.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
TXT	`v=spf1 a mx ip4:42.112.31.97 mx:didonghaiphong.com ?all`
SOA	`nsbak.dotvndns.com`hostmaster@didonghaiphong.com 2023-12-22 #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=1778550061

Subdomains

www.didonghaiphong.com

Same first word

didonghaiphong.com

DNS History

6 records (5 active, 1 former)

●NSns1.dotvndns.vn2015-08-19 → 2026-05-12 · 2 obs

● 2015-08-19 15:20:36
● 2026-05-12 02:07:38

●NSns2.dotvndns.vn2015-08-19 → 2026-05-12 · 2 obs

● 2015-08-19 15:20:36
● 2026-05-12 02:07:38

●NSnsbak.dotvndns.com2026-05-01 → 2026-05-12 · 3 obs

○ 2015-08-19 15:20:36
● 2026-05-01 08:56:10
● 2026-05-12 02:07:38

●MXmail.didonghaiphong.com2015-08-19 → 2026-05-12 · 2 obs

● 2015-08-19 15:20:36
● 2026-05-12 02:07:38

○A103.28.249.1392015-08-19 → 2015-12-08 · 4 obs

● 2015-08-19 15:20:36
● 2015-12-08 09:41:40
○ 2016-03-17 17:54:10
○ 2026-05-12 02:07:38

●A112.213.87.212016-03-17 → 2026-05-12 · 3 obs

○ 2015-12-08 09:41:40
● 2016-03-17 17:54:10
● 2026-05-12 02:07:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net...	-
didonghaiphong.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 didonghaiphong.com (unsigned zone)

⏱️ Timing

Total: 1674ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`112.213.87.21`
NS	3	`ns1.dotvndns.vn, nsbak.dotvndns.com...`
MX	1	`mail.didonghaiphong.com (pri: 10)`
TXT	1	`v=spf1 a mx ip4:42.112.31.97 mx:didongha`
SOA	1	`nsbak.dotvndns.com hostmaster.didonghaip`

📌 Glue Records Collected

Total: 2

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

Analysis

Hierarchy

didonghaiphong.com is parent of www.didonghaiphong.com.

IP Addresses

didonghaiphong.com points to a single IP: 112.213.87.21.

Other host names, for instance www.dienthoaihaiphong.com, sieuthivp.com and dienthoaihaiphong.com share IP numbers with didonghaiphong.com.

Name Servers

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

didonghaiphong.com at least partially shares its name servers with other domains, for instance conganquangninh.gov.vn, mitsubishidongnai.vn, kimgiaminh.vn, bichha.vn and duockimlong.vn.

these name servers are commonly used with the name servers ns1.pavietnam.vn, ns3.dotvndns.vn, ns2.pavietnam.vn, nsbak.pavietnam.net and ns4.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

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

mail.didonghaiphong.com points to IP number 42.112.31.97.

didonghaiphong.com - robtex.com