`duokong.com`

DNSSEC	⚠️ Not signed
A	47.75.242.13^{🇭🇰 Alibaba-Cloud47.75.128.0/17 Proxy-registered route object}
NS	`dns9.hichina.com` ⭐
		A	2408:4009:501::17^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.42^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-42.defastlink.net`
		A	39.96.153.52^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-52.defastlink.net`
		A	47.118.199.202^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-202.defastlink.net`
		A	47.118.199.212^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-212.defastlink.net`
		A	120.76.107.42^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-42.defastlink.net`
		A	120.76.107.52^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-52.defastlink.net`
		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,}
			PTR	`ip-139-224-142-112.defastlink.net`
		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,}
			PTR	`ip-139-224-142-122.defastlink.net`
NS	`dns10.hichina.com`
		A	2408:4009:501::18^{🇨🇳 Alibaba-Cloud2408:4009:501::/48}
		A	39.96.153.41^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-41.defastlink.net`
		A	39.96.153.51^{🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC}
			PTR	`ip-39-96-153-51.defastlink.net`
		A	47.118.199.201^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-201.defastlink.net`
		A	47.118.199.211^{🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd.}
			PTR	`ip-47-118-199-211.defastlink.net`
		A	120.76.107.41^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-41.defastlink.net`
		A	120.76.107.51^{🇨🇳 Alibaba-Cloud120.76.0.0/17}
			PTR	`ip-120-76-107-51.defastlink.net`
		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,}
			PTR	`ip-139-224-142-111.defastlink.net`
		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,}
			PTR	`ip-139-224-142-121.defastlink.net`
MX	`mxbiz1.qq.com` ⭐
		A	203.205.147.218^{🇭🇰 TENCENT-NET-AP-CN203.205.147.0/24 Proxy-registered route object}
		A	203.205.232.191^{🇭🇰 TENCENT-NET-AP-CN203.205.232.0/23 Proxy-registered route object}
MX	`mxbiz2.qq.com`⁽¹⁰⁾
		A	203.205.232.191^{🇭🇰 TENCENT-NET-AP-CN203.205.232.0/23 Proxy-registered route object}
SOA	`dns9.hichina.com`hostmaster@hichina.com 2026-01-12 #9

`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=1771291435

Subdomains

www.duokong.com

Same first word

duokong.com

Similar names

dongkou.cc

doukong.com

dokungo.com

DNS History

12 records (5 active, 7 former)

●NSdns10.hichina.com2026-03-05 → 2026-03-23 · 3 obs

○ 2017-02-08 21:07:32
● 2026-03-05 23:20:36
● 2026-03-23 22:40:26

○NSdns7.hichina.com2015-07-19 → 2016-02-22 · 4 obs

● 2015-07-19 12:41:32
● 2016-02-22 11:57:06
○ 2016-05-07 07:13:18
○ 2026-03-23 22:40:26

○NSdns8.hichina.com2015-07-19 → 2016-02-22 · 4 obs

● 2015-07-19 12:41:32
● 2016-02-22 11:57:06
○ 2016-05-07 07:13:18
○ 2026-03-23 22:40:26

●NSdns9.hichina.com2026-03-05 → 2026-03-23 · 3 obs

○ 2017-02-08 21:07:32
● 2026-03-05 23:20:36
● 2026-03-23 22:40:26

○NSf1g1ns1.dnspod.net2017-02-08 → 2017-02-08 · 4 obs

○ 2016-05-07 07:13:18
● 2017-02-08 21:07:32
○ 2026-03-05 23:20:36
○ 2026-03-23 22:40:26

○NSf1g1ns2.dnspod.net2017-02-08 → 2017-02-08 · 4 obs

○ 2016-05-07 07:13:18
● 2017-02-08 21:07:32
○ 2026-03-05 23:20:36
○ 2026-03-23 22:40:26

○NSns1.alidns.com2016-05-07 → 2016-05-07 · 4 obs

○ 2016-02-22 11:57:06
● 2016-05-07 07:13:18
○ 2017-02-08 21:07:32
○ 2026-03-23 22:40:26

○NSns2.alidns.com2016-05-07 → 2016-05-07 · 4 obs

○ 2016-02-22 11:57:06
● 2016-05-07 07:13:18
○ 2017-02-08 21:07:32
○ 2026-03-23 22:40:26

●MXmxbiz1.qq.com2026-03-05 → 2026-03-23 · 2 obs

● 2026-03-05 23:20:36
● 2026-03-23 22:40:26

●MXmxbiz2.qq.com2026-03-05 → 2026-03-23 · 2 obs

● 2026-03-05 23:20:36
● 2026-03-23 22:40:26

○A202.85.221.2092015-07-19 → 2016-05-07 · 4 obs

● 2015-07-19 12:41:32
● 2016-05-07 07:13:18
○ 2017-02-08 21:07:32
○ 2026-03-23 22:40:26

●A47.75.242.132026-03-05 → 2026-03-23 · 3 obs

○ 2017-02-08 21:07:32
● 2026-03-05 23:20:36
● 2026-03-23 22:40:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
duokong.com	dns9.hichina.com, dns10.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.41

NS records: dns9.hichina.com, dns10.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for duokong.com (unsigned zone)

⏱️ Timing

Total: 535ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.75.242.13`
NS	2	`dns10.hichina.com, dns9.hichina.com`
MX	2	`mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)`
SOA	1	`dns9.hichina.com hostmaster.hichina.com`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns9.hichina.com, dns9.hichina.com, dns9.hichina.com...)

Analysis

Hierarchy

The parent of www.duokong.com is duokong.com.

IP Addresses

duokong.com points to a single IP number: 47.75.242.13.

Other host names, for instance www.duokong.com, share IP numbers with duokong.com.

Name Servers

duokong.com is delegated to two name servers: dns10.hichina.com and dns9.hichina.com.

duokong.com uses the same name server setup as other domains, for instance dongniyingyu.com, sunfly-water.com, malingshan.com, comesure.com and aomeix.com.

duokong.com shares name servers with other domains at least partially; for example lianoo.com, dianlf.com, cktworld.com and icpbiz.com.

these name servers are commonly used together with expirens3.hichina.com and expirens4.hichina.com.

Host names with nine IP numbers: dns10.hichina.com points to 2408:4009:501::18, 39.96.153.41, 39.96.153.51, 47.118.199.201, 47.118.199.211, 120.76.107.41, 120.76.107.51, 139.224.142.111 and 139.224.142.121; dns9.hichina.com points to 2408:4009:501::17, 39.96.153.42, 39.96.153.52, 47.118.199.202, 47.118.199.212, 120.76.107.42, 120.76.107.52, 139.224.142.112 and 139.224.142.122.

Mail Servers

duokong.com is handled by two mail servers: mxbiz1.qq.com and mxbiz2.qq.com.

duokong.com shares the same mail server setup as other domains, including fanzaihanbao.com, kwdtech.com, cloudasia.org, eqikai.com and gy19.com.

At least part of duokong.com's mail servers are shared with other domains, for instance itlym.cn and fonrich.cn.

Host names with two IPs:

mxbiz1.qq.com points to 203.205.147.218 and 203.205.232.191.

Host names with one IP:

mxbiz2.qq.com points to 203.205.232.191.

Host names pointing to 203.205.232.191:

mxbiz1.qq.com and mxbiz2.qq.com.

duokong.com - robtex.com

duokong.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`duokong.com`

`com`