cosco.cn - robtex.com
cosco.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns.chimbusco.com.cn ⚠️ Not in zone NS records | ||||||
| A | 240e:83:9003:e::1🇨🇳 CHINANET-BACKBONE240e::/24 China Telecom | ||||||
| A | 219.141.253.233🇨🇳 CHINANET-BJ-METRO219.141.128.0/17 CHINANET Beijing province network | ||||||
| NS | home.cosco.com.cn ⚠️ Not in zone NS records | ||||||
| A | 219.141.253.1🇨🇳 CHINANET-BJ-METRO219.141.128.0/17 CHINANET Beijing province network | ||||||
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=2034599114 | ||||||
Same first word
Similar names
DNS History
3 records (2 active, 1 former)
●NSdns.chimbusco.com.cn2026-02-23 → 2026-03-28 · 3 obs
● 2026-02-23 07:07:28
● 2026-03-28 14:07:56
●NShome.cosco.com.cn2015-11-11 → 2026-03-28 · 2 obs
● 2026-03-28 14:07:56
○NSns2.coscon.com2015-11-11 → 2017-01-18 · 4 obs
● 2017-01-18 05:40:50
○ 2026-02-23 07:07:28
○ 2026-03-28 14:07:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| cosco.cn | dns.chimbusco.com.cn, home.cosco.com.cn | - |
✅ Authoritative Response
Server:219.141.253.1
NS records: dns.chimbusco.com.cn, home.cosco.com.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cosco.cn (unsigned zone)
⏱️ Timing
Total: 3943ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
cosco.cn has two name servers: dns.chimbusco.com.cn and home.cosco.com.cn.
cosco.cn shares the same name server setup as other domains, for example mail.chimbusco.com.cn, chimbusco.com.cn, cosco.com.cn, www.chimbusco.com.cn and chimbusco.com.
cosco.cn shares some name servers with other domains, for example cyzp.cosco.com, nrw.cosco.com, kxfzg.cosco.com, cosco.com and host201.cosco.com.
These name servers are commonly used together with ns1.coscon.com and ns2.coscon.com.
Host names with two IP numbers: dns.chimbusco.com.cn points to: 240e:83:9003:e::1 and 219.141.253.233.
Host names with one IP number: home.cosco.com.cn points to: 219.141.253.1.