`tudonghoaidea.com`

DNSSEC	⚠️ Not signed
A	112.213.89.38^{🇻🇳 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	`ns8938.dotvndns.vn`
NS	`nsbak.pavietnam.net` ⭐
		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.pavietnam.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.pavietnam.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`
SOA	`nsbak.pavietnam.net`hostmaster@tudonghoaidea.com 2023-02-17 #6

`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=1778716106

Same first word

tudonghoaidea.com

DNS History

4 records (4 active, 0 former)

●NSns1.pavietnam.vn2026-04-01 → 2026-05-13 · 2 obs

● 2026-04-01 14:19:56
● 2026-05-13 23:48:50

●NSns2.pavietnam.vn2026-04-01 → 2026-05-13 · 2 obs

● 2026-04-01 14:19:56
● 2026-05-13 23:48:50

●NSnsbak.pavietnam.net2026-04-01 → 2026-05-13 · 2 obs

● 2026-04-01 14:19:56
● 2026-05-13 23:48:50

●A112.213.89.382026-04-01 → 2026-05-13 · 2 obs

● 2026-04-01 14:19:56
● 2026-05-13 23:48:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, d.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net...	-
tudonghoaidea.com	nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn	-

✅ Authoritative Response

Server:112.213.89.22

NS records: nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tudonghoaidea.com (unsigned zone)

⏱️ Timing

Total: 1452ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`112.213.89.38`
NS	3	`ns2.pavietnam.vn, ns1.pavietnam.vn...`
SOA	1	`nsbak.pavietnam.net hostmaster.tudonghoa`

Analysis

IP Addresses

tudonghoaidea.com resolves to a single IP address: 112.213.89.38.

Other host names including tamiqua.com, tocdep.com, thanhthanhcong.com.vn, hospital.ctump.edu.vn and hufi.vn share IP numbers with tudonghoaidea.com.

Name Servers

tudonghoaidea.com is delegated to three name servers: nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn.

tudonghoaidea.com at least partially shares name servers with other domains, including rubicontours.com.vn, erateq.vn, metrum.com.vn, mavachphucan.com and baotangthegioicaphe.com.

these name servers are commonly used together with ns1.dotvndns.vn, nsbak.dotvndns.com and ns2.dotvndns.vn.

Host names with two IP numbers:

nsbak.pavietnam.net points to: 2406:9c80::9000:302 and 112.213.89.22

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

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

tudonghoaidea.com - robtex.com