`tudothythy.vn`

DNSSEC	⚠️ Not signed
A	202.92.5.48^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN}
NS	`ns1.dotvndns.vn` ⭐ ⚠️ Not in parent delegation
		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	`ns1.pavietnam.vn` ⚠️ Not in zone NS records
		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` ⚠️ Not in parent delegation
		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	`ns2.pavietnam.vn` ⚠️ Not in zone NS records
		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.pavietnam.net` ⚠️ Not in zone NS records
		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`
SOA	`ns1.dotvndns.vn`hostmaster@tudothythy.vn 2026-02-03 #3

`vn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`dns-master.vnnic.vn` ⭐
	NS	`a.dns-servers.vn`
	NS	`b.dns-servers.vn`
	NS	`c.dns-servers.vn`
	NS	`d.dns-servers.vn`
	NS	`e.dns-servers.vn`
	NS	`f.dns-servers.vn`
	NS	`g.dns-servers.vn`
	NS	`h.dns-servers.vn`
	SOA	`dns-master.vnnic.vn`postmaster@vnnic.vn serial=2030751493

Subdomains

www.tudothythy.vn

Same first word

tudothythy.com.vn

tudothythy.vn

DNS History

6 records (6 active, 0 former)

●NSns1.dotvndns.vn2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:10:28
● 2026-05-09 10:01:58

●NSns1.pavietnam.vn2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:10:28
● 2026-05-09 10:01:58

●NSns2.dotvndns.vn2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:10:28
● 2026-05-09 10:01:58

●NSns2.pavietnam.vn2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:10:28
● 2026-05-09 10:01:58

●NSnsbak.pavietnam.net2026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:10:28
● 2026-05-09 10:01:58

●A202.92.5.482026-05-01 → 2026-05-09 · 2 obs

● 2026-05-01 09:10:28
● 2026-05-09 10:01:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	c.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn...	-
tudothythy.vn	ns1.pavietnam.vn, ns2.pavietnam.vn, nsbak.pavietnam.net	4 records

✅ Authoritative Response

Server:112.213.89.3

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tudothythy.vn (unsigned zone)

⏱️ Timing

Total: 1835ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.92.5.48`
NS	2	`ns2.dotvndns.vn, ns1.dotvndns.vn`
SOA	1	`ns1.dotvndns.vn hostmaster.tudothythy.vn`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns2.pavietnam.vn, ns2.pavietnam.vn, ns1.pavietnam.vn...)

Analysis

Hierarchy

tudothythy.vn is a parent of www.tudothythy.vn.

IP Addresses

tudothythy.vn points to a single IP number: 202.92.5.48.

Other host names, for instance broker.student.trinhan.edu.vn, ngthithuyvy.id.vn, tcktktdl.edu.vn, nguyenngochai.com and hocvienkhampha.edu.vn share IP numbers with tudothythy.vn.

Name Servers

tudothythy.vn is delegated to five name servers: nsbak.pavietnam.net, ns1.dotvndns.vn, ns2.dotvndns.vn, ns1.pavietnam.vn and ns2.pavietnam.vn.

tudothythy.vn at least partially shares name servers with other domains, for instance mallocakitchen.vn, lavadigital.net, lahome.com.vn, phuanreal.vn and idico.vn.