ducool.cn - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`ducool.cn`

DNSSEC	⚠️ Not signed
A	60.205.21.149^{🇨🇳 Alibaba-Cloud60.205.0.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District,}
NS	`dns13.hichina.com` ⭐
		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`
		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,}
MX	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
SOA	`dns13.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=2035186111

Same first word

ducool.cn

ducool.com

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DNS History

5 records (5 active, 0 former)

●NSdns13.hichina.com2015-07-03 → 2026-08-16 · 2 obs

● 2015-07-03 13:42:24
● 2026-08-16 07:32:24

●NSdns14.hichina.com2015-07-03 → 2026-08-16 · 2 obs

● 2015-07-03 13:42:24
● 2026-08-16 07:32:24

●MXmxbiz1.qq.com2015-07-03 → 2026-08-16 · 5 obs

● 2015-07-03 13:42:24
● 2026-04-16 04:57:38
○ 2026-06-17 00:22:08
● 2026-06-25 11:04:02
● 2026-08-16 07:32:24

●MXmxbiz2.qq.com2015-07-03 → 2026-08-16 · 5 obs

● 2015-07-03 13:42:24
● 2026-04-16 04:57:38
○ 2026-06-17 00:22:08
● 2026-06-25 11:04:02
● 2026-08-16 07:32:24

●A60.205.21.1492026-03-17 → 2026-08-16 · 5 obs

● 2026-03-17 15:23:42
● 2026-04-16 04:57:38
○ 2026-06-17 00:22:08
● 2026-06-25 11:04:02
● 2026-08-16 07:32:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	11 records
ducool.cn	dns13.hichina.com, dns14.hichina.com	-

✅ Authoritative Response

Server:120.76.107.42

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ducool.cn (unsigned zone)

⏱️ Timing

Total: 1707ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`60.205.21.149`
NS	2	`dns13.hichina.com, dns14.hichina.com`
MX	2	`mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)`
SOA	1	`dns13.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 11

In-bailiwick: 10 (a.dns.cn, a.dns.cn, b.dns.cn...)

Out-of-bailiwick: 1 (ns.cernet.net)

Analysis

IP Addresses

ducool.cn directs to one IP number, which is 60.205.21.149.

Name Servers

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

ducool.cn has the same name server delegation as a number of other domains, such as lonwinchem.com, leafgarden.com, actintl.com.cn and two more.

There is an overlap in name servers between ducool.cn and other domains, for example notepage.cn, wwdz2.com and scmzu-acm.com

These name servers tend to be deployed in combination with the name servers expirens3.hichina.com and expirens4.hichina.com.

Host names resolving to 9 IP numbers:

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.

Mail Servers

The MX records for ducool.cn point to two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.

ducool.cn has the same mail server arrangement as a number of other domains, for example jxstreams.com, cavacn.com, teitc.cn and two more.

At least a portion of ducool.cn's mail servers are shared with other domains, among them houchengcai.com and eweadn.cn.