dupl.cn - robtex.com
dupl.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 198.44.239.236🇺🇸 DXTL-1198.44.224.0/19 Customer Route - LOA provided | ||||||
| NS | dm1.longmingdns.com ⭐ | ||||||
| A | 218.98.111.163🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| NS | dm2.longmingdns.com | ||||||
| A | 183.253.57.197🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| A | 211.99.99.56🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| SOA | dm1.longmingdns.comdnsadmin@longmingdns.com serial=1769941188 | ||||||
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.cnroot@cnnic.cn serial=2034595758 | ||||||
Same first word
Similar names
DNS History
9 records (3 active, 6 former)
●NSdm1.longmingdns.com2026-03-06 → 2026-03-27 · 3 obs
○ 2018-08-27 12:29:56
● 2026-03-06 18:27:36
● 2026-03-27 21:42:20
● 2026-03-06 18:27:36
● 2026-03-27 21:42:20
●NSdm2.longmingdns.com2026-03-06 → 2026-03-27 · 3 obs
○ 2018-08-27 12:29:56
● 2026-03-06 18:27:36
● 2026-03-27 21:42:20
● 2026-03-06 18:27:36
● 2026-03-27 21:42:20
○NSdns10.hichina.com2017-01-08 → 2017-01-08 · 3 obs
● 2017-01-08 21:55:28
○ 2018-08-27 12:29:56
○ 2026-03-27 21:42:20
○ 2018-08-27 12:29:56
○ 2026-03-27 21:42:20
○NSdns9.hichina.com2017-01-08 → 2017-01-08 · 3 obs
● 2017-01-08 21:55:28
○ 2018-08-27 12:29:56
○ 2026-03-27 21:42:20
○ 2018-08-27 12:29:56
○ 2026-03-27 21:42:20
○NSns5.dnsdun.com2018-08-27 → 2018-08-27 · 4 obs
○ 2017-01-08 21:55:28
● 2018-08-27 12:29:56
○ 2026-03-06 18:27:36
○ 2026-03-27 21:42:20
● 2018-08-27 12:29:56
○ 2026-03-06 18:27:36
○ 2026-03-27 21:42:20
○NSns5.dnsdun.net2018-08-27 → 2018-08-27 · 4 obs
○ 2017-01-08 21:55:28
● 2018-08-27 12:29:56
○ 2026-03-06 18:27:36
○ 2026-03-27 21:42:20
● 2018-08-27 12:29:56
○ 2026-03-06 18:27:36
○ 2026-03-27 21:42:20
○A104.149.105.62018-08-27 → 2018-08-27 · 4 obs
○ 2017-01-08 21:55:28
● 2018-08-27 12:29:56
○ 2026-03-06 18:27:36
○ 2026-03-27 21:42:20
● 2018-08-27 12:29:56
○ 2026-03-06 18:27:36
○ 2026-03-27 21:42:20
○A123.108.110.782016-04-11 → 2016-04-11 · 3 obs
● 2016-04-11 16:22:52
○ 2017-01-08 21:55:28
○ 2026-03-27 21:42:20
○ 2017-01-08 21:55:28
○ 2026-03-27 21:42:20
●A198.44.239.2362026-03-06 → 2026-03-27 · 3 obs
○ 2018-08-27 12:29:56
● 2026-03-06 18:27:36
● 2026-03-27 21:42:20
● 2026-03-06 18:27:36
● 2026-03-27 21:42:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| dupl.cn | dm1.longmingdns.com, dm2.longmingdns.com | - |
✅ Authoritative Response
Server:218.98.111.163
NS records: dm1.longmingdns.com, dm2.longmingdns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dupl.cn (unsigned zone)
⏱️ Timing
Total: 4694ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 198.44.239.236 |
| NS | 2 | dm1.longmingdns.com, dm2.longmingdns.com |
| SOA | 1 | dm1.longmingdns.com dnsadmin.longmingdns |
Analysis
IP Addresses
dupl.cn maps to IP address 198.44.239.236.
Name Servers
Two name servers dm1.longmingdns.com and dm2.longmingdns.com are delegated to dupl.cn.
dupl.cn uses the same name server configuration as other domains, such as jxhuajian.cn, luoyangtengdun.cn, clearpc.cn, hmwiremesh.cn and cciforex.com.
Host names by IP count:
Two IP numbers: The host name dm2.longmingdns.com points to 183.253.57.197 and 211.99.99.56.
One IP number: The host name dm1.longmingdns.com points to 218.98.111.163.