`thietbiphutro.net`

DNSSEC	⚠️ Not signed
A	103.28.36.91^{🇻🇳 NHAN-HOA-AS-VN103.28.36.0/22 NHANHOA-VN}
		PTR	`sharewin3691.nhanhoa.com`
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`
SOA	`nsbak.dotvndns.com`hostmaster@thietbiphutro.net 2025-06-03 #7

`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=1776140157

Same first word

thietbiphutro.net

DNS History

10 records (4 active, 6 former)

○NSadrian.ns.cloudflare.com2017-01-03 → 2017-11-28 · 4 obs

● 2017-01-03 11:17:32
● 2017-11-28 02:25:54
○ 2026-03-23 21:43:42
○ 2026-04-14 04:28:26

○NSbrad.ns.cloudflare.com2017-01-03 → 2017-11-28 · 4 obs

● 2017-01-03 11:17:32
● 2017-11-28 02:25:54
○ 2026-03-23 21:43:42
○ 2026-04-14 04:28:26

●NSns1.dotvndns.vn2026-03-23 → 2026-04-14 · 3 obs

○ 2017-11-28 02:25:54
● 2026-03-23 21:43:42
● 2026-04-14 04:28:26

●NSns2.dotvndns.vn2026-03-23 → 2026-04-14 · 3 obs

○ 2017-11-28 02:25:54
● 2026-03-23 21:43:42
● 2026-04-14 04:28:26

●NSnsbak.dotvndns.com2026-03-23 → 2026-04-14 · 3 obs

○ 2017-11-28 02:25:54
● 2026-03-23 21:43:42
● 2026-04-14 04:28:26

●A103.28.36.912026-03-23 → 2026-04-14 · 3 obs

○ 2017-11-28 02:25:54
● 2026-03-23 21:43:42
● 2026-04-14 04:28:26

○A104.24.124.72017-01-03 → 2017-11-28 · 4 obs

● 2017-01-03 11:17:32
● 2017-11-28 02:25:54
○ 2026-03-23 21:43:42
○ 2026-04-14 04:28:26

○A104.24.125.72017-01-03 → 2017-11-28 · 4 obs

● 2017-01-03 11:17:32
● 2017-11-28 02:25:54
○ 2026-03-23 21:43:42
○ 2026-04-14 04:28:26

○A2400:cb00:2048:1::6818:7c072017-01-03 → 2017-11-28 · 4 obs

● 2017-01-03 11:17:32
● 2017-11-28 02:25:54
○ 2026-03-23 21:43:42
○ 2026-04-14 04:28:26

○A2400:cb00:2048:1::6818:7d072017-01-03 → 2017-11-28 · 4 obs

● 2017-01-03 11:17:32
● 2017-11-28 02:25:54
○ 2026-03-23 21:43:42
○ 2026-04-14 04:28:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
thietbiphutro.net	nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn	-

✅ Authoritative Response

Server:222.255.121.247

NS records: nsbak.dotvndns.com, ns1.dotvndns.vn, ns2.dotvndns.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for thietbiphutro.net (unsigned zone)

⏱️ Timing

Total: 1522ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.28.36.91`
NS	3	`ns1.dotvndns.vn, nsbak.dotvndns.com...`
SOA	1	`nsbak.dotvndns.com hostmaster.thietbiphu`

Analysis

IP Addresses

thietbiphutro.net points to IP number 103.28.36.91.

For instance, other host names namphatjsc.com, sharewin3691.nhanhoa.com, quangcaovov.com, navico.com.vn and phuvinh.com share IP numbers with thietbiphutro.net.

Name Servers

The delegation for thietbiphutro.net is handled by three name servers: nsbak.dotvndns.com, ns1.dotvndns.vn and ns2.dotvndns.vn.

thietbiphutro.net shares name servers with other domains at least partially, for example nanosoft.vn, hethongnhakhoabaoanh.com, e-block.vn, satthepgiadaily.com and w3suga.com.

These name servers are often used together with the name servers ns1.pavietnam.vn, ns3.dotvndns.vn, nsbak.pavietnam.net, ns2.pavietnam.vn and ns4.dotvndns.vn.

Host names with two IPs:

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

thietbiphutro.net - robtex.com