51cow.com.cn - robtex.com
51cow.com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 43.250.238.4🇨🇳 PEOPLENET43.250.236.0/22 People.Cn CO.,LTD NO.2 Jintai Xilu,Beijing,China | ||||||
| NS | ns1.sfn.cn ⭐ | ||||||
| A | 111.63.77.29🇨🇳 CMNET-V4HEBEI-AS-AP111.63.64.0/20 CMI (Customer Route) | ||||||
| NS | ns2.sfn.cn | ||||||
| A | 101.37.119.99🇨🇳 Alibaba-Cloud101.37.0.0/17 | ||||||
| A | 111.63.77.30🇨🇳 CMNET-V4HEBEI-AS-AP111.63.64.0/20 CMI (Customer Route) | ||||||
| SOA | ns1.sfn.cnroot@ns1.sfn.cn 2026-08-12 #21 | ||||||
com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | c.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | cns.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | d.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | e.dns.cn ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2030749346 | ||||||
Same first word
51cow.com.cn |
Similar names
DNS History
3 records (3 active, 0 former)
●A43.250.238.42026-06-28 → 2026-08-12 · 2 obs
● 2026-08-12 18:48:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | d.dns.cn, b.dns.cn, a.dns.cn, c.dns.cn... | - |
| 51cow.com.cn | ns1.sfn.cn, ns2.sfn.cn | - |
✅ Authoritative Response
Server:111.63.77.29
NS records: ns1.sfn.cn, ns2.sfn.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51cow.com.cn (unsigned zone)
⏱️ Timing
Total: 1978ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 43.250.238.4 |
| NS | 2 | ns2.sfn.cn, ns1.sfn.cn |
| SOA | 1 | ns1.sfn.cn root.ns1.sfn.cn |
Analysis
IP Addresses
51cow.com.cn directs to one IP number, which is 43.250.238.4.
Other host names, such as 51niu.com.cn, share IP numbers with 51cow.com.cn.
Name Servers
51cow.com.cn is delegated to two name servers: ns1.sfn.cn and ns2.sfn.cn.
51cow.com.cn has the same name server delegation as a number of other domains, such as sanfront.org, pangbo.com.cn, ciac.ac.cn and two more.
51cow.com.cn shares at least some of its name servers with other domains, such as optics.org.cn.
Hosts with two IP numbers each:
ns2.sfn.cn points to 101.37.119.99 and 111.63.77.30.
Hosts that resolve to one IP address:
ns1.sfn.cn points to 111.63.77.29.