sysd.cn - dns.ninja

`sysd.cn`

DNSSEC	⚠️ Not signed
A	203.107.45.167^{🇨🇳 Alibaba-Cloud203.107.45.0/24 Alibaba (US) Technology Co., Ltd.}
		PTR	`catl.com`
NS	`dns21.hichina.com` ⭐
		A	2408:4009:501::29^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.40^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.60^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.200^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.220^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.40^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.60^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.100^{🇨🇳 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	139.224.142.110^{🇨🇳 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	`dns22.hichina.com`
		A	2408:4009:501::30^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.38^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	39.96.153.61^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
		A	47.118.199.198^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	47.118.199.222^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
		A	120.76.107.38^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	120.76.107.61^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
		A	139.224.142.98^{🇨🇳 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	139.224.142.108^{🇨🇳 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	`hzmx01.mxmail.netease.com` ⭐
MX	`hzmx02.mxmail.netease.com`⁽¹⁰⁾
TXT	`v=spf1 include:spf.163.com -all`
SOA	`dns21.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`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=2035069365

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DNS History

16 records (5 active, 11 former)

●NSdns21.hichina.com2026-02-25 → 2026-07-21 · 3 obs

○ 2016-10-30 01:13:16
● 2026-02-25 12:53:30
● 2026-07-21 08:22:38

●NSdns22.hichina.com2026-02-25 → 2026-07-21 · 3 obs

○ 2016-10-30 01:13:16
● 2026-02-25 12:53:30
● 2026-07-21 08:22:38

○NSns11.xincache.com2015-06-24 → 2016-10-30 · 4 obs

● 2015-06-24 02:08:58
● 2016-10-30 01:13:16
○ 2026-02-25 12:53:30
○ 2026-07-21 08:22:38

○NSns12.xincache.com2015-06-24 → 2016-10-30 · 4 obs

● 2015-06-24 02:08:58
● 2016-10-30 01:13:16
○ 2026-02-25 12:53:30
○ 2026-07-21 08:22:38

○NSns13.xincache.com2015-06-24 → 2016-10-30 · 4 obs

● 2015-06-24 02:08:58
● 2016-10-30 01:13:16
○ 2026-02-25 12:53:30
○ 2026-07-21 08:22:38

○NSns14.xincache.com2015-06-24 → 2016-10-30 · 4 obs

● 2015-06-24 02:08:58
● 2016-10-30 01:13:16
○ 2026-02-25 12:53:30
○ 2026-07-21 08:22:38

○NSns17.xincache.com2015-06-24 → 2016-10-30 · 4 obs

● 2015-06-24 02:08:58
● 2016-10-30 01:13:16
○ 2026-02-25 12:53:30
○ 2026-07-21 08:22:38

○NSns18.xincache.com2015-06-24 → 2016-10-30 · 4 obs

● 2015-06-24 02:08:58
● 2016-10-30 01:13:16
○ 2026-02-25 12:53:30
○ 2026-07-21 08:22:38

●MXhzmx01.mxmail.netease.com2026-05-25 → 2026-07-21 · 3 obs

○ 2026-05-15 20:45:34
● 2026-05-25 17:43:00
● 2026-07-21 08:22:38

●MXhzmx02.mxmail.netease.com2026-05-25 → 2026-07-21 · 3 obs

○ 2026-05-15 20:45:34
● 2026-05-25 17:43:00
● 2026-07-21 08:22:38

○MXmx-n.global-mail.cn2026-02-25 → 2026-05-15 · 5 obs

○ 2016-10-30 01:13:16
● 2026-02-25 12:53:30
● 2026-05-15 20:45:34
○ 2026-05-25 17:43:00
○ 2026-07-21 08:22:38

○MXmx1-n.global-mail.cn2026-02-25 → 2026-05-15 · 5 obs

○ 2016-10-30 01:13:16
● 2026-02-25 12:53:30
● 2026-05-15 20:45:34
○ 2026-05-25 17:43:00
○ 2026-07-21 08:22:38

○MXmxn.mxhichina.com2015-06-24 → 2016-10-30 · 4 obs

● 2015-06-24 02:08:58
● 2016-10-30 01:13:16
○ 2026-02-25 12:53:30
○ 2026-07-21 08:22:38

○MXmxw.mxhichina.com2015-06-24 → 2016-10-30 · 4 obs

● 2015-06-24 02:08:58
● 2016-10-30 01:13:16
○ 2026-02-25 12:53:30
○ 2026-07-21 08:22:38

○A121.197.116.1012015-06-24 → 2016-10-30 · 4 obs

● 2015-06-24 02:08:58
● 2016-10-30 01:13:16
○ 2026-02-25 12:53:30
○ 2026-07-21 08:22:38

●A203.107.45.1672026-02-25 → 2026-07-21 · 3 obs

○ 2016-10-30 01:13:16
● 2026-02-25 12:53:30
● 2026-07-21 08:22:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
sysd.cn	dns21.hichina.com, dns22.hichina.com	-

✅ Authoritative Response

Server:139.224.142.110

NS records: dns21.hichina.com, dns22.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sysd.cn (unsigned zone)

⏱️ Timing

Total: 3822ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`203.107.45.167`
NS	2	`dns21.hichina.com, dns22.hichina.com`
MX	2	`hzmx02.mxmail.netease.com (pri: 10), hzmx01.mxmail.netease.com (pri: 5)`
TXT	1	`v=spf1 include:spf.163.com -all`
SOA	1	`dns21.hichina.com hostmaster.hichina.com`

Analysis

IP Addresses

sysd.cn resolves to just one IP address, 203.107.45.167.

Two other host names, along with yadjw.gov.cn, wedon.com and cnwangju.com, also share IP numbers with sysd.cn.

Name Servers

sysd.cn is delegated to two name servers: dns21.hichina.com and dns22.hichina.com.

sysd.cn shares its NS records with other domains, for example salechaty.com, jsyh.com.cn, aacm.cn and two others.

sysd.cn partially shares its NS delegation with several other domains, including ytyq.com, zjjbgf.com, djsczp.com and two others.

These name servers are regularly seen alongside expirens3.hichina.com and expirens4.hichina.com as name servers.

DNS names with 9 IP addresses:

dns21.hichina.com resolves to 39.96.153.40, 39.96.153.60, 47.118.199.200 and 6 other IP addresses.

dns22.hichina.com resolves to 39.96.153.38, 39.96.153.61, 47.118.199.198 and 6 other IP addresses.

Mail Servers

sysd.cn is served by two mail servers, hzmx01.mxmail.netease.com and hzmx02.mxmail.netease.com.

Among the domains sharing a mail server setup with sysd.cn are ldmgj.com, neo-concept.com.hk, dzghsk.com and two others.

The MX records for sysd.cn are at least partially shared with other domains, such as guideenglish.com, dgwellcom.com, superpolish.com and verygenome.com.