`quangcaothoidai.net`

DNSSEC	⚠️ Not signed
A	202.92.5.48^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-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`
MX	`mail.quangcaothoidai.net` ⭐
		A	202.92.5.48^{🇻🇳 VNPT-AS-VN202.92.4.0/22 INET-VN}
TXT	`v=spf1 a mx ~all`
SOA	`nsbak.pavietnam.net`hostmaster@quangcaothoidai.net 2026-02-28 #14

`net`

	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=1776090377

Subdomains

mail.quangcaothoidai.net

Same first word

quangcaothoidai.net

DNS History

10 records (5 active, 5 former)

○NSdnstemp1.pavietnam.com2026-02-16 → 2026-02-27 · 5 obs

○ 2018-10-30 10:54:16
● 2026-02-16 02:37:10
● 2026-02-27 12:44:24
○ 2026-03-07 20:28:54
○ 2026-04-13 14:53:48

○NSdnstemp2.pavietnam.com2026-02-16 → 2026-02-27 · 5 obs

○ 2018-10-30 10:54:16
● 2026-02-16 02:37:10
● 2026-02-27 12:44:24
○ 2026-03-07 20:28:54
○ 2026-04-13 14:53:48

●NSns1.pavietnam.vn2015-04-10 → 2026-04-13 · 6 obs

● 2015-04-10 03:31:54
● 2018-10-30 10:54:16
○ 2026-02-16 02:37:10
○ 2026-02-27 12:44:24
● 2026-03-07 20:28:54
● 2026-04-13 14:53:48

●NSns2.pavietnam.vn2015-04-10 → 2026-04-13 · 6 obs

● 2015-04-10 03:31:54
● 2018-10-30 10:54:16
○ 2026-02-16 02:37:10
○ 2026-02-27 12:44:24
● 2026-03-07 20:28:54
● 2026-04-13 14:53:48

●NSnsbak.pavietnam.net2026-03-07 → 2026-04-13 · 4 obs

○ 2026-02-16 02:37:10
○ 2026-02-27 12:44:24
● 2026-03-07 20:28:54
● 2026-04-13 14:53:48

●MXmail.quangcaothoidai.net2026-02-16 → 2026-04-13 · 5 obs

● 2026-02-16 02:37:10
● 2026-02-16 21:28:32
○ 2026-02-27 12:44:24
● 2026-03-07 20:28:54
● 2026-04-13 14:53:48

○A103.18.7.2272016-02-01 → 2016-04-21 · 5 obs

○ 2015-11-07 16:38:22
● 2016-02-01 09:02:22
● 2016-04-21 08:35:46
○ 2017-01-01 04:57:20
○ 2026-04-13 14:53:48

○A112.213.91.612026-02-16 → 2026-02-27 · 5 obs

○ 2018-10-30 10:54:16
● 2026-02-16 02:37:10
● 2026-02-27 12:44:24
○ 2026-03-07 20:28:54
○ 2026-04-13 14:53:48

○A123.30.238.1592015-04-10 → 2018-10-30 · 8 obs

● 2015-04-10 03:31:54
● 2015-11-07 16:38:22
○ 2016-02-01 09:02:22
○ 2016-04-21 08:35:46
● 2017-01-01 04:57:20
● 2018-10-30 10:54:16
○ 2026-02-16 02:37:10
○ 2026-04-13 14:53:48

●A202.92.5.482026-03-07 → 2026-04-13 · 4 obs

○ 2026-02-16 02:37:10
○ 2026-02-27 12:44:24
● 2026-03-07 20:28:54
● 2026-04-13 14:53:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
quangcaothoidai.net	nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn	2 records

✅ 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 quangcaothoidai.net (unsigned zone)

⏱️ Timing

Total: 1597ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`202.92.5.48`
NS	3	`nsbak.pavietnam.net, ns1.pavietnam.vn...`
MX	1	`mail.quangcaothoidai.net (pri: 10)`
TXT	1	`v=spf1 a mx ~all`
SOA	1	`nsbak.pavietnam.net hostmaster.quangcaot`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (nsbak.pavietnam.net, nsbak.pavietnam.net)

Analysis

Hierarchy

quangcaothoidai.net is parent of mail.quangcaothoidai.net.

IP Addresses

quangcaothoidai.net points to a single IP: 202.92.5.48.

Other host names, for instance mail.thietbixe.com, www.pharmavet.com.vn, trumhonghot.click, mcbooks.vn and chupanh.vn share IP numbers with quangcaothoidai.net.

Name Servers

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

quangcaothoidai.net at least partially shares its name servers with other domains, for instance design3s.com, onways.com, yte360.com, ghechoigame.vn and ttctravel.vn.

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

Mail Servers

quangcaothoidai.net is served by a single mail server, mail.quangcaothoidai.net.

mail.quangcaothoidai.net points to IP number 202.92.5.48.

quangcaothoidai.net - robtex.com