bbdoc.cn - robtex.com
bbdoc.cn
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 | ||||||
Same first word
Similar names
DNS History
2 records (2 active, 0 former)
●NSdns19.hichina.com2026-02-22 → 2026-02-22 · 2 obs
● 2026-02-22 10:05:42
●NSdns20.hichina.com2026-02-22 → 2026-02-22 · 2 obs
● 2026-02-22 10:05:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| bbdoc.cn | dns19.hichina.com, dns20.hichina.com | - |
✅ Authoritative Response
Server: 47.118.199.198
NS records: dns19.hichina.com, dns20.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bbdoc.cn (unsigned zone)
⏱️ Timing
Total: 4897ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns20.hichina.com, dns19.hichina.com |
| SOA | 1 | dns19.hichina.com hostmaster.hichina.com |
AI analysis
bbdoc.cn is delegated to two name servers: dns19.hichina.com and dns20.hichina.com.
bbdoc.cn uses the same name server setup as other domains such as aier-tec.com, xwill-group.com, trhfw.com, haibuai.cn and investinfinland.cn.
bbdoc.cn shares name servers with other domains at least partially, for instance mmsanda.com, 43573.cn and cgeg.com.cn.
These name servers are commonly used with the name servers expirens3.hichina.com and expirens4.hichina.com.
Host names with nine IP numbers:
dns19.hichina.com points to: 2408:4009:501::27, 39.96.153.40, 39.96.153.60, 47.118.199.200, 47.118.199.220, 120.76.107.40, 120.76.107.60, 139.224.142.100 and 139.224.142.110.
dns20.hichina.com points to: 2408:4009:501::28, 39.96.153.38, 39.96.153.61, 47.118.199.198, 47.118.199.222, 120.76.107.38, 120.76.107.61, 139.224.142.98 and 139.224.142.108.