51d2.cn - robtex.com
51d2.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 207.57.209.176🇺🇸 USZNI-AS-AP | ||||||
| NS | ns1.nowcndns.com ⭐ | ||||||
| A | 1.193.216.204🇨🇳 CHINANET-Henan-Luoyang-IDC | ||||||
| PTR | ip-1-193-216-204.defastlink.net | ||||||
| A | 218.98.111.129🇩🇪 HKCICL-AS-AP | ||||||
| PTR | ip-218-98-111-129.defastlink.net | ||||||
| A | 218.98.111.138🇩🇪 HKCICL-AS-AP | ||||||
| PTR | ip-218-98-111-138.defastlink.net | ||||||
| NS | ns2.nowcndns.com | ||||||
| A | 61.158.128.11🇨🇳 CHINA169-Backbone | ||||||
| PTR | 11.128.158.61.ha.cnc | ||||||
| A | 183.253.57.202🇨🇳 CHINAMOBILE-CN | ||||||
| PTR | ip-183-253-57-202.defastlink.net | ||||||
| A | 211.99.99.38🇨🇳 DONGGUAN-1 | ||||||
| PTR | ip-211-99-99-38.defastlink.net | ||||||
| SOA | ns1.nowcndns.comadmin@nowcndns.com serial=1769181774 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| 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=2034456417 | ||||||
Up
Same first word
51d2.cn |
Similar names
DNS History
4 records (3 active, 1 former)
●NSns1.nowcndns.com2026-02-21 → 2026-02-21 · 2 obs
● 2026-02-21 16:40:56
●NSns2.nowcndns.com2026-02-21 → 2026-02-21 · 2 obs
● 2026-02-21 16:40:56
○A154.23.102.482026-02-21 → 2026-02-21 · 2 obs
○ 2026-02-21 16:40:56
●A207.57.209.1762026-02-21 → 2026-02-21 · 2 obs
● 2026-02-21 16:40:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| 51d2.cn | ns1.nowcndns.com, ns2.nowcndns.com | - |
✅ Authoritative Response
Server: 218.98.111.138
NS records: ns1.nowcndns.com, ns2.nowcndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51d2.cn (unsigned zone)
⏱️ Timing
Total: 524ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 207.57.209.176 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
AI analysis
The parent of 7eb965af99a34a319a809618b02e0f23.51d2.cn is 51d2.cn.
51d2.cn points to a single IP number: 207.57.209.176.
Other host names, for instance chewchew.cn, www.chewchew.cn and jwvd.cn share IP numbers with 51d2.cn.
51d2.cn is delegated to two name servers: ns1.nowcndns.com and ns2.nowcndns.com.
51d2.cn uses the same name server setup as other domains, for instance 592tm.com.cn, nbdngs.cn, 226cp.cn, dxcheng.cn and ait-ic.com.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.