stuin.com - dns.ninja

`stuin.com`

DNSSEC	⚠️ Not signed
A	47.114.57.130^{🇨🇳 Alibaba-Cloud47.114.0.0/17 Alibaba (US) Technology Co., Ltd.}
NS	`dns27.hichina.com` ⭐
		A	2408:4009:501::35^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.39^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.59^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.199^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.219^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.39^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.59^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.99^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.109^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns28.hichina.com`
		A	2408:4009:501::36^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.37^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.62^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.197^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.221^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.37^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.62^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.102^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
		A	139.224.142.107^{🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
MX	`mxbiz2.qq.com` ⭐
MX	`mxbiz1.qq.com`⁽¹⁰⁾
SOA	`dns27.hichina.com`hostmaster@hichina.com 2026-06-04 #13

`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=1781585310

Subdomains

*.stuin.com

wendang.stuin.com

Same first word

stuin.com

stuin.ac.kr

Similar names

tisun.gr

sunit.kz

sutin.com

itsnu.io

nuist.id

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units.school

nsuit.net

tunis.ru

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tinus.net.eu.org

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tinus.net

tisun.kz

tunis.at

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units.network

instu.com

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tnius.org

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nutsi.xyz

nitus.eu

units.com.br

units.nyc

ustin.co

units.fr

nuits.fr

units.in

sunit.fi

units.com.ua

DNS History

10 records (5 active, 5 former)

●NSdns27.hichina.com2020-02-03 → 2026-06-16 · 3 obs

○ 2016-11-28 03:50:24
● 2020-02-03 11:56:26
● 2026-06-16 05:14:28

●NSdns28.hichina.com2020-02-03 → 2026-06-16 · 3 obs

○ 2016-11-28 03:50:24
● 2020-02-03 11:56:26
● 2026-06-16 05:14:28

○NSns1.dns.com.cn2015-11-05 → 2016-11-28 · 5 obs

○ 2015-08-03 09:42:56
● 2015-11-05 09:41:48
● 2016-11-28 03:50:24
○ 2020-02-03 11:56:26
○ 2026-06-16 05:14:28

○NSns2.dns.com.cn2015-08-03 → 2016-11-28 · 4 obs

● 2015-08-03 09:42:56
● 2016-11-28 03:50:24
○ 2020-02-03 11:56:26
○ 2026-06-16 05:14:28

●MXmxbiz1.qq.com2020-02-03 → 2026-06-16 · 3 obs

○ 2016-08-18 18:11:26
● 2020-02-03 11:56:26
● 2026-06-16 05:14:28

●MXmxbiz2.qq.com2020-02-03 → 2026-06-16 · 3 obs

○ 2016-08-18 18:11:26
● 2020-02-03 11:56:26
● 2026-06-16 05:14:28

○MXmxdomain.qq.com2015-08-03 → 2016-08-18 · 4 obs

● 2015-08-03 09:42:56
● 2016-08-18 18:11:26
○ 2020-02-03 11:56:26
○ 2026-06-16 05:14:28

○A115.238.164.2132015-08-03 → 2015-08-03 · 3 obs

● 2015-08-03 09:42:56
○ 2015-11-05 09:41:48
○ 2026-06-16 05:14:28

○A120.55.192.2012015-11-05 → 2020-02-15 · 5 obs

○ 2015-08-03 09:42:56
● 2015-11-05 09:41:48
● 2020-02-15 13:17:56
○ 2026-02-19 00:48:54
○ 2026-06-16 05:14:28

●A47.114.57.1302026-02-19 → 2026-06-16 · 3 obs

○ 2020-02-15 13:17:56
● 2026-02-19 00:48:54
● 2026-06-16 05:14:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
stuin.com	dns27.hichina.com, dns28.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.39

NS records: dns27.hichina.com, dns28.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stuin.com (unsigned zone)

⏱️ Timing

Total: 3620ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.114.57.130`
NS	2	`dns27.hichina.com, dns28.hichina.com`
MX	2	`mxbiz1.qq.com (pri: 10), mxbiz2.qq.com (pri: 5)`
SOA	1	`dns27.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns27.hichina.com, dns27.hichina.com, dns27.hichina.com...)

Analysis

Hierarchy

stuin.com serves as the parent of *.stuin.com and wendang.stuin.com.

IP Addresses

stuin.com has exactly one IP address — 47.114.57.130.

Other hosts including youkua.club, wendang.stuin.com and *.stuin.com share IP addresses with stuin.com.

Name Servers

stuin.com uses two name servers for its delegation: dns27.hichina.com and dns28.hichina.com.

The name server configuration of stuin.com is shared with other domains, for instance mhymy.com, tongchengxinyong.cn, anruan.net and two others.

Hosts with 9 IP addresses each:

Hostname dns27.hichina.com directs to 39.96.153.39, 39.96.153.59 and 47.118.199.199 along with 6 other IP addresses.

Hostname dns28.hichina.com directs to 39.96.153.37, 39.96.153.62 and 47.118.199.197 along with 6 other IP addresses.

Mail Servers

stuin.com uses two mail servers, mxbiz1.qq.com and mxbiz2.qq.com.

The mail server setup of stuin.com matches that of other domains such as pnsi.cn, lsrmyy.com, schi.com.cn and two others.

At least some of the mail servers used by stuin.com are shared with other domains: kjcx.net, zhongchuang365.com, luxerobot.com and two others among them.