`citssz.com`

DNSSEC	⚠️ Not signed
NS	`ns19.xincache.com` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	2402:4e00:1730::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1700::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	36.155.149.180^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.45^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.173^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	125.94.59.210^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
		A	129.211.176.209^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
NS	`ns20.xincache.com`
		A	2402:4e00:111:fff::c^{🇨🇳 TENCENT-NET-AP2402:4e00::/35}
		A	1.12.0.1^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	36.155.149.176^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	112.80.181.111^{🇨🇳 CHINA169-Backbone112.80.0.0/13 China Unicom CHINA169 Jiangsu Province Network}
		A	117.89.178.184^{🇨🇳 ChinaNet-NANJING-JISHAN-IDC117.89.176.0/21 JS-CT NJ-JS-IDC}
		A	129.211.176.239^{🇨🇳 TENCENT-NET-AP129.211.176.0/20}
		A	163.177.5.23^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
SOA	`ns19.xincache.com`enterprise1dnsadmin@dnspod.com serial=1621220873

`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=1777226471

Subdomains

www.citssz.com

Same first word

citssz.com

Similar names

zscits.cn

tszsci.com

szsict.com.cn

szcits.cn

szsict.com

DNS History

5 records (2 active, 3 former)

○NSns13.xincache.com2015-05-24 → 2016-03-17 · 4 obs

● 2015-05-24 14:39:00
● 2016-03-17 18:14:38
○ 2017-03-16 05:13:58
○ 2026-04-26 18:10:10

○NSns14.xincache.com2015-05-24 → 2016-03-17 · 4 obs

● 2015-05-24 14:39:00
● 2016-03-17 18:14:38
○ 2017-03-16 05:13:58
○ 2026-04-26 18:10:10

●NSns19.xincache.com2017-03-16 → 2026-04-26 · 3 obs

○ 2016-03-17 18:14:38
● 2017-03-16 05:13:58
● 2026-04-26 18:10:10

●NSns20.xincache.com2017-03-16 → 2026-04-26 · 3 obs

○ 2016-03-17 18:14:38
● 2017-03-16 05:13:58
● 2026-04-26 18:10:10

○A58.211.0.202015-05-24 → 2017-03-16 · 4 obs

● 2015-05-24 14:39:00
● 2017-03-16 05:13:58
○ 2020-01-18 06:26:14
○ 2026-04-26 18:10:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
citssz.com	ns19.xincache.com, ns20.xincache.com	12 records

✅ Authoritative Response

Server:1.12.0.4

NS records: ns19.xincache.com, ns20.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for citssz.com (unsigned zone)

⏱️ Timing

Total: 376ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns19.xincache.com, ns20.xincache.com`
SOA	1	`ns19.xincache.com enterprise1dnsadmin.dn`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (ns19.xincache.com, ns19.xincache.com, ns19.xincache.com...)

Analysis

Hierarchy

The parent of www.citssz.com is citssz.com.

Name Servers

Two name servers ns19.xincache.com and ns20.xincache.com handle delegation for citssz.com.

citssz.com uses the same name server setup as other domains, for example bjcjyd.cn, diycp.com, cdzx2008.com, gsdserc.com and china-learning.com.

citssz.com partially shares name servers with other domains; examples include zqwl021.com, hlzk.cn, xunke.gov.cn, onv.com.cn and hanbaogroup.com.

These name servers are often used with the name servers ns11.xincache.com and ns12.xincache.com.

Hosts with eight IP numbers:

ns19.xincache.com points to 2402:4e00:1470:2::e, 2402:4e00:1730::e, 1.12.0.4, 36.155.149.180, 112.80.181.45, 117.89.178.173, 125.94.59.210 and 129.211.176.209.

Hosts with seven IP numbers:

ns20.xincache.com points to 2402:4e00:111:fff::c, 1.12.0.1, 36.155.149.176, 112.80.181.111, 117.89.178.184, 129.211.176.239 and 163.177.5.23.

citssz.com - robtex.com

citssz.com

com