dou20.cn - robtex.com
dou20.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 156.254.56.214🇭🇰 OWGELS-AS-AP156.254.32.0/19 Starbow Ltd | ||||||
| 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=1757841369 | ||||||
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=2034601094 | ||||||
Subdomains
www.dou20.cn |
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
●NSdm1.longmingdns.com2026-03-23 → 2026-03-28 · 2 obs
● 2026-03-28 20:50:02
●NSdm2.longmingdns.com2026-03-23 → 2026-03-28 · 2 obs
● 2026-03-28 20:50:02
●A156.254.56.2142026-03-23 → 2026-03-28 · 2 obs
● 2026-03-28 20:50:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| dou20.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 dou20.cn (unsigned zone)
⏱️ Timing
Total: 1530ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 156.254.56.214 |
| NS | 2 | dm1.longmingdns.com, dm2.longmingdns.com |
| SOA | 1 | dm1.longmingdns.com dnsadmin.longmingdns |
Analysis
Hierarchy
The parent of www.dou20.cn is dou20.cn.
IP Addresses
dou20.cn points to a single IP address: 156.254.56.214.
Other host names, for example m.wxwanying.cn, www.dou20.cn and www.wxwanying.cn share IPs with dou20.cn.
Name Servers
Two name servers dm1.longmingdns.com and dm2.longmingdns.com handle the delegation for dou20.cn.
dou20.cn shares the same name server setup as other domains, for example glro.cn, criht.cn, yijiawang.com.cn, eyekandi.cn and noyh.cn.
Host names with two IP numbers:
dm2.longmingdns.com points to 183.253.57.197 and 211.99.99.56.
Host names with one IP number:
dm1.longmingdns.com points to 218.98.111.163.