sysadmin.cn - dns.ninja

`sysadmin.cn`

DNSSEC	⚠️ Not signed
NS	`dns13.hichina.com` ⚠️ Not in zone NS records
		A	2408:4009:501::21^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.112^{🇨🇳 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	139.224.142.122^{🇨🇳 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	`dns14.hichina.com` ⚠️ Not in zone NS records
		A	2408:4009:501::22^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.111^{🇨🇳 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	139.224.142.121^{🇨🇳 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,}

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034923698

Subdomains

www.sysadmin.cn

Same first word

sysadmin.ru

sysadmin.technology

sysadmin.express

sysadmin.im

sysadmin.no

sysadmin.pe.kr

sysadmin.network

sysadmin.pt

sysadmin.run

sysadmin.monster

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sysadmin.pro

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sysadmin.in.ua

sysadmin.co.in

sysadmin.fi

sysadmin.lv

sysadmin.is

sysadmin.dk

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sysadmin.poltava.ua

sysadmin.cl

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sysadmin.dp.ua

sysadmin.org.mx

sysadmin.site

sysadmin.co.uk

sysadmin.lk

sysadmin.bz

sysadmin.ca

sysadmin.gr

sysadmin.noip.me

sysadmin.com.uy

sysadmin.cn

sysadmin.guide

sysadmin.net.nz

sysadmin.se

sysadmin.kz

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sysadmin.awsapps.com

sysadmin.fr

sysadmin.org

sysadmin.chat

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sysadmin.co

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sysadmin.systems

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sysadmin.tv

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sysadmin.su

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sysadmin.pm

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sysadmin.mx

sysadmin.zip

sysadmin.com.mx

sysadmin.xyz

sysadmin.uz

sysadmin.com.br

sysadmin.life

sysadmin.info

sysadmin.bg

sysadmin.eu

sysadmin.be

sysadmin.md

sysadmin.com

sysadmin.ge

sysadmin.name

sysadmin.bialystok.pl

sysadmin.de

sysadmin.win

sysadmin.web.id

Similar names

DNS History

12 records (2 active, 10 former)

●NSdns13.hichina.com2026-02-17 → 2026-06-16 · 3 obs

○ 2017-02-15 06:27:02
● 2026-02-17 22:42:24
● 2026-06-16 06:48:06

●NSdns14.hichina.com2026-02-17 → 2026-06-16 · 3 obs

○ 2017-02-15 06:27:02
● 2026-02-17 22:42:24
● 2026-06-16 06:48:06

○NSns1.17ex.com2026-02-17 → 2026-06-16 · 2 obs

○ 2026-02-17 22:42:24
○ 2026-06-16 06:48:06

○NSns2.17ex.com2026-02-17 → 2026-06-16 · 2 obs

○ 2026-02-17 22:42:24
○ 2026-06-16 06:48:06

○NSwww.sysadmin.cn2015-08-15 → 2017-02-15 · 4 obs

● 2015-08-15 06:28:58
● 2017-02-15 06:27:02
○ 2026-02-17 22:42:24
○ 2026-06-16 06:48:06

○MXio.bouncemx.com2015-12-01 → 2016-06-26 · 4 obs

● 2015-12-01 16:00:26
● 2016-06-26 02:41:48
○ 2026-02-17 22:42:24
○ 2026-06-16 06:48:06

○A70.39.84.2342015-12-01 → 2016-02-28 · 5 obs

○ 2015-08-15 06:28:58
● 2015-12-01 16:00:26
● 2016-02-28 02:04:10
○ 2016-06-26 02:41:48
○ 2026-06-16 06:48:06

○A70.39.84.2472016-06-26 → 2016-06-26 · 4 obs

○ 2016-02-28 02:04:10
● 2016-06-26 02:41:48
○ 2026-02-17 22:42:24
○ 2026-06-16 06:48:06

○A70.39.84.2512015-08-15 → 2015-08-15 · 3 obs

● 2015-08-15 06:28:58
○ 2026-02-17 22:42:24
○ 2026-06-16 06:48:06

○CNAMEoverdue.aliyun.com2026-02-17 → 2026-06-02 · 4 obs

○ 2017-02-15 06:27:02
● 2026-02-17 22:42:24
● 2026-06-02 03:23:38
○ 2026-06-16 06:48:06

○CNAMEs.dcoin.co2015-08-15 → 2016-06-26 · 4 obs

● 2015-08-15 06:28:58
● 2016-06-26 02:41:48
○ 2017-02-15 06:27:02
○ 2026-06-16 06:48:06

○CNAMEshow.17ex.com2026-02-17 → 2026-06-16 · 2 obs

○ 2026-02-17 22:42:24
○ 2026-06-16 06:48:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, b.dns.cn, a.dns.cn, c.dns.cn...	-
sysadmin.cn	dns13.hichina.com, dns14.hichina.com	-

✅ Authoritative Response

Server:120.76.107.51

NS records: dns13.hichina.com, dns14.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysadmin.cn (unsigned zone)

⏱️ Timing

Total: 4402ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`dns14.hichina.com, dns13.hichina.com`
CNAME	1	`overdue.aliyun.com`
SOA	1	`dns13.hichina.com hostmaster.hichina.com`

Analysis

Hierarchy

sysadmin.cn is a parent domain of www.sysadmin.cn.

Name Servers

sysadmin.cn is served by two delegated name servers, dns13.hichina.com and dns14.hichina.com.

sysadmin.cn shares its NS records with other domains, for example qdjxhb.com, cby.ink, zd-pm.com and two others.

sysadmin.cn shares at least some of its name servers with other domains, including jsfs.cn, disct.com, jdzcct.com and two others.

These name servers are frequently seen alongside expirens3.hichina.com, expirens4.hichina.com, dns10.hichina.com and 3 other name servers.

DNS names with 9 IP addresses:

dns13.hichina.com carries IP addresses 39.96.153.42, 39.96.153.52 and 47.118.199.202, with 6 other addresses beyond those.

dns14.hichina.com carries IP addresses 39.96.153.41, 39.96.153.51 and 47.118.199.201, with 6 other addresses beyond those.