51dou.cn - robtex.com
51dou.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.12.148.33🇺🇸 PEGTECHINC38.12.128.0/18 PEG TECH INC | ||||||
| NS | ns1.nowcndns.com ⭐ | ||||||
| A | 1.193.216.204🇨🇳 CHINANET-Henan-Luoyang-IDC1.193.216.0/24 Chinatelecom HeNan Province Network | ||||||
| A | 218.98.111.129🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| A | 218.98.111.138🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| NS | ns2.nowcndns.com | ||||||
| A | 61.158.128.11🇨🇳 CHINA169-Backbone61.158.128.0/17 CNC Group CHINA169 Henan Province Network | ||||||
| PTR | 11.128.158.61.ha.cnc | ||||||
| A | 183.253.57.202🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| A | 211.99.99.38🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| SOA | ns1.nowcndns.comadmin@nowcndns.com serial=1776505688 | ||||||
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=2034720428 | ||||||
Same first word
51dou.cn |
Similar names
DNS History
8 records (3 active, 5 former)
○NSf1g1ns1.dnspod.net2015-06-09 → 2019-03-25 · 4 obs
● 2019-03-25 01:30:06
○ 2026-02-25 20:56:52
○ 2026-04-27 20:38:36
○NSf1g1ns2.dnspod.net2015-06-09 → 2019-03-25 · 4 obs
● 2019-03-25 01:30:06
○ 2026-02-25 20:56:52
○ 2026-04-27 20:38:36
●NSns1.nowcndns.com2026-02-25 → 2026-04-27 · 3 obs
● 2026-02-25 20:56:52
● 2026-04-27 20:38:36
●NSns2.nowcndns.com2026-02-25 → 2026-04-27 · 3 obs
● 2026-02-25 20:56:52
● 2026-04-27 20:38:36
○MXmxdomain.qq.com2015-06-09 → 2019-03-25 · 4 obs
● 2019-03-25 01:30:06
○ 2026-02-25 20:56:52
○ 2026-04-27 20:38:36
○A112.124.20.2372015-06-09 → 2019-03-25 · 4 obs
● 2019-03-25 01:30:06
○ 2026-02-25 20:56:52
○ 2026-04-27 20:38:36
○A38.11.39.1962026-02-25 → 2026-02-25 · 3 obs
● 2026-02-25 20:56:52
○ 2026-04-27 20:38:36
●A38.12.148.332026-04-27 → 2026-04-27 · 2 obs
● 2026-04-27 20:38:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | c.dns.cn, b.dns.cn, a.dns.cn, e.dns.cn... | - |
| 51dou.cn | ns1.nowcndns.com, ns2.nowcndns.com | - |
✅ Authoritative Response
Server:1.193.216.204
NS records: ns1.nowcndns.com, ns2.nowcndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51dou.cn (unsigned zone)
⏱️ Timing
Total: 1734ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.12.148.33 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
51dou.cn points to a single IP number: 38.12.148.33.
other host names for instance www25128.cn, centralstarsports.com.cn, axlenoco.cn, 2094.com.cn and wd42.cn share IP numbers with 51dou.cn.
Name Servers
51dou.cn is delegated to two name servers: ns1.nowcndns.com and ns2.nowcndns.com.
51dou.cn shares the same name server setup as other domains, for example js8000.cn, elld.cn, e94e.cn, fruily.cn and u9003.cn.
Host names with three IP numbers:
ns1.nowcndns.com points to: 1.193.216.204, 218.98.111.129 and 218.98.111.138.
ns2.nowcndns.com points to: 61.158.128.11, 183.253.57.202 and 211.99.99.38.