`caosujhaoyang.com`

DNSSEC	⚠️ Not signed
A	103.221.223.76^{🇻🇳 AZDIGI-AS-VN103.221.220.0/22 AZDIGI-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@caosujhaoyang.com 2025-07-09 #9

`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=1778343891

Same first word

caosujhaoyang.com

DNS History

5 records (4 active, 1 former)

●NSns1.pavietnam.vn2018-05-13 → 2026-05-09 · 2 obs

● 2018-05-13 14:26:30
● 2026-05-09 16:26:56

●NSns2.pavietnam.vn2018-05-13 → 2026-05-09 · 2 obs

● 2018-05-13 14:26:30
● 2026-05-09 16:26:56

●NSnsbak.pavietnam.net2026-05-01 → 2026-05-09 · 3 obs

○ 2018-05-13 14:26:30
● 2026-05-01 07:36:44
● 2026-05-09 16:26:56

●A103.221.223.762026-05-01 → 2026-05-09 · 3 obs

○ 2018-05-13 14:26:30
● 2026-05-01 07:36:44
● 2026-05-09 16:26:56

○A45.124.95.2252018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 14:26:30
○ 2026-05-01 07:36:44
○ 2026-05-09 16:26:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, i.gtld-servers.net, f.gtld-servers.net, e.gtld-servers.net...	-
caosujhaoyang.com	nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn	-

✅ Authoritative Response

Server:112.213.89.3

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for caosujhaoyang.com (unsigned zone)

⏱️ Timing

Total: 719ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.221.223.76`
NS	3	`nsbak.pavietnam.net, ns1.pavietnam.vn...`
SOA	1	`nsbak.pavietnam.net hostmaster.caosujhao`

Analysis

IP Addresses

caosujhaoyang.com points to an IP address: 103.221.223.76.

other host names include thuvienso.ktcc.edu.vn, www.bonggoncongnghiep.com, www.comanhsang.vn, mail.xenangcombilift.com.vn and vnbeautycommercesefa.io.vn; they share IP numbers with caosujhaoyang.com.

Name Servers

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

caosujhaoyang.com at least partially shares name servers with other domains, for instance vinavn.com, baoquangninh.org.vn, hoangdao.edu.vn, dongphuchocsinhsinhvien.com and easyfix.vn.

These name servers are commonly used alongside 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.

caosujhaoyang.com - robtex.com