`nhackhuc.vn`

DNSSEC	⚠️ Not signed
A	103.7.40.171^{🇻🇳 SUPERDATA103.7.40.0/24 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	`mx40171.superdata.vn`
NS	`ns1.tenten.vn` ⚠️ Not in zone NS records
		A	2404:f080:1101:322:a150:95:113:2270^{🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi}
			PTR	`ns1.tenten.vn`
		A	103.18.7.201^{🇻🇳 GMO-ZCOM-AS-VN103.18.6.0/23 RUNSYSTEM-VN}
			PTR	`ns1.tenten.vn`
NS	`ns2.tenten.vn` ⚠️ Not in zone NS records
		A	2404:f080:1101:322:a150:95:113:2271^{🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi}
			PTR	`ns2.tenten.vn`
		A	103.18.7.202^{🇻🇳 GMO-ZCOM-AS-VN103.18.6.0/23 RUNSYSTEM-VN}
			PTR	`ns2.tenten.vn`
NS	`ns3.tenten.vn` ⚠️ Not in zone NS records
		A	2404:f080:1101:322:a150:95:113:2272^{🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi}
			PTR	`ns3.tenten.vn`
		A	133.130.107.205^{🇯🇵 GMO-INTERNET133.130.64.0/18 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`ns3.tenten.vn`
NS	`ns4.tenten.vn` ⚠️ Not in parent delegation
		A	2404:f080:1101:302:a163:44:193:20^{🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi}
			PTR	`ns4.tenten.vn`
		A	103.18.7.204^{🇻🇳 GMO-ZCOM-AS-VN103.18.6.0/23 RUNSYSTEM-VN}
			PTR	`ns4.tenten.vn`
NS	`ns5.tenten.vn` ⚠️ Not in parent delegation
		A	2404:f080:1101:302:a163:44:193:21^{🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi}
			PTR	`ns5.tenten.vn`
		A	103.18.7.205^{🇻🇳 GMO-ZCOM-AS-VN103.18.6.0/23 RUNSYSTEM-VN}
			PTR	`ns5.tenten.vn`
NS	`ns6.tenten.vn` ⚠️ Not in parent delegation
		A	2404:f080:1101:302:a163:44:193:22^{🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi}
			PTR	`ns6.tenten.vn`
		A	52.74.6.184^{🇸🇬 Amazon52.74.0.0/16 SIN prefix}
			PTR	`ec2-52-74-6-184.ap-southeast-1.compute.amazonaws.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4023:c0d::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dl-in-f27.1e100.net`
		A	74.125.137.26^{🇺🇸 Google74.125.137.0/24}
			PTR	`dy-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1b^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f27.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c00::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`ws-in-f26.1e100.net`
			PTR	`ws-in-x1a.1e100.net`
		A	173.194.76.26^{🇺🇸 Google173.194.76.0/24}
			PTR	`ws-in-f26.1e100.net`
TXT	`google-site-verification=3yjzgoIQujmRdwSieEbR2no4GesoFFsURCneQLGhkKY`
TXT	`v=spf1 include:_spf.google.com ~all`
SOA	`.`hostmaster@nhackhuc.vn 2026-04-19 #15

`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=2030754076

Subdomains

www.nhackhuc.vn

api.nhackhuc.vn

socket.nhackhuc.vn

Same first word

nhackhuc.vn

nhackhuc.edu.vn

nhackhuc.com

DNS History

12 records (12 active, 0 former)

●NSns1.tenten.vn2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 11:36:08
● 2026-05-10 04:55:24

●NSns2.tenten.vn2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 11:36:08
● 2026-05-10 04:55:24

●NSns3.tenten.vn2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 11:36:08
● 2026-05-10 04:55:24

●NSns4.tenten.vn2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 11:36:08
● 2026-05-10 04:55:24

●NSns5.tenten.vn2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 11:36:08
● 2026-05-10 04:55:24

●NSns6.tenten.vn2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 11:36:08
● 2026-05-10 04:55:24

●MXalt1.aspmx.l.google.com2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 11:36:08
● 2026-05-10 04:55:24

●MXalt2.aspmx.l.google.com2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 11:36:08
● 2026-05-10 04:55:24

●MXalt3.aspmx.l.google.com2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 11:36:08
● 2026-05-10 04:55:24

●MXalt4.aspmx.l.google.com2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 11:36:08
● 2026-05-10 04:55:24

●MXaspmx.l.google.com2026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 11:36:08
● 2026-05-10 04:55:24

●A103.7.40.1712026-05-01 → 2026-05-10 · 2 obs

● 2026-05-01 11:36:08
● 2026-05-10 04:55:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	16 records
nhackhuc.vn	ns1.tenten.vn, ns3.tenten.vn, ns2.tenten.vn	3 records

✅ Authoritative Response

Server:103.18.7.202

NS records: ns1.tenten.vn, ns3.tenten.vn, ns2.tenten.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nhackhuc.vn (unsigned zone)

⏱️ Timing

Total: 1754ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.7.40.171`
NS	3	`NS6.TENTEN.vn, NS4.TENTEN.vn...`
MX	5	`ALT2.ASPMX.L.GOOGLE.COM (pri: 5), ALT3.ASPMX.L.GOOGLE.COM (pri: 10)...`
TXT	2	`v=spf1 include:_spf.google.com ~all, google-site-verification=3yjzgoIQujmRdwS`
SOA	1	`. hostmaster.nhackhuc.vn`