`qdct.cn`

DNSSEC	⚠️ Not signed
NS	`ns11.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	`ns12.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}
MX	`mail.qdct.cn` ⭐
SOA	`ns11.xincache.com`ns12@xincache.com serial=1773536468

`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=2034590216

Subdomains

www.qdct.cn

Same first word

qdct.cn

qdct.com

Similar names

dqtc.com.cn

ctqd.net

dqtc.com

tcdq.net

tdqc.com

cqtd.com

qdtc.com.cn

dtqc.net

cqdt.org

cqdt.shop

tdcq.cn

qcdt.com

tdqc.cn

ctdq.net

tcdq.cn

qdtc.com

tcqd.com

cdqt.com

ctqd.com

dtcq.com

cdqt.cn

qtdc.com

tdqc.ca

tcdq.com

cdqt.com.cn

tdcq.com

DNS History

5 records (3 active, 2 former)

○NSns.sdjnptt.net.cn2015-06-09 → 2017-07-01 · 4 obs

● 2015-06-09 00:10:36
● 2017-07-01 16:41:40
○ 2026-03-21 02:35:24
○ 2026-03-26 16:39:50

○NSns1.sdjnptt.net.cn2015-06-09 → 2017-07-01 · 4 obs

● 2015-06-09 00:10:36
● 2017-07-01 16:41:40
○ 2026-03-21 02:35:24
○ 2026-03-26 16:39:50

●NSns11.xincache.com2026-03-21 → 2026-03-26 · 3 obs

○ 2017-07-01 16:41:40
● 2026-03-21 02:35:24
● 2026-03-26 16:39:50

●NSns12.xincache.com2026-03-21 → 2026-03-26 · 3 obs

○ 2017-07-01 16:41:40
● 2026-03-21 02:35:24
● 2026-03-26 16:39:50

●MXmail.qdct.cn2015-06-09 → 2026-03-26 · 2 obs

● 2015-06-09 00:10:36
● 2026-03-26 16:39:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, d.dns.cn, c.dns.cn, a.dns.cn...	-
qdct.cn	ns11.xincache.com, ns12.xincache.com	-

✅ Authoritative Response

Server:163.177.5.23

NS records: ns11.xincache.com, ns12.xincache.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for qdct.cn (unsigned zone)

⏱️ Timing

Total: 4551ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	2	`ns12.xincache.com, ns11.xincache.com`
MX	1	`mail.qdct.cn (pri: 10)`
SOA	1	`ns11.xincache.com ns12.xincache.com`

Analysis

Hierarchy

qdct.cn is the parent of www.qdct.cn.

Name Servers

qdct.cn is delegated to two name servers: ns11.xincache.com and ns12.xincache.com.

qdct.cn shares the same name server setup as other domains, for example translatomedb.net, jwzjzx.com, sdtadq.com, cnakiyama.com and huangerying.org.

qdct.cn at least partially shares name servers with other domains, for instance inroll.net, wyyyyj.com, unitradeinc.com, asc.net.cn and china-cri.com.

These name servers are often used together with the name servers ns17.xincache.com, ns18.xincache.com, ns19.xincache.com, ns20.xincache.com, ns13.xincache.com, ns14.xincache.com, ce1.xincache.com, ce2.xincache.com, ns15.xincache.com and ns16.xincache.com.

Host names with eight IP numbers: ns11.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.

Host names with seven IP numbers: ns12.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.

Mail Servers

qdct.cn is handled by a single mail server, mail.qdct.cn.

qdct.cn - robtex.com

qdct.cn

cn