bfsu.cn - robtex.com
bfsu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | bfsuweb.bfsu.edu.cn ⚠️ Not in zone NS records | ||||||
| A | 2001:da8:20f:3032::12🇨🇳 ERX-CERNET-BKB2001:da8:20f::/48 | ||||||
| A | 202.204.128.12🇨🇳 ERX-CERNET-BKB202.204.128.0/20 CMI (Customer Route) | ||||||
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=2034598873 | ||||||
Same first word
Similar names
DNS History
2 records (1 active, 1 former)
●NSbfsuweb.bfsu.edu.cn2026-03-27 → 2026-03-28 · 3 obs
○ 2017-06-05 21:41:24
● 2026-03-27 00:39:50
● 2026-03-28 13:21:00
● 2026-03-27 00:39:50
● 2026-03-28 13:21:00
○NSns1.bfsu.edu.cn2015-08-20 → 2017-06-05 · 4 obs
● 2015-08-20 16:58:52
● 2017-06-05 21:41:24
○ 2026-03-27 00:39:50
○ 2026-03-28 13:21:00
● 2017-06-05 21:41:24
○ 2026-03-27 00:39:50
○ 2026-03-28 13:21:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| bfsu.cn | bfsuweb.bfsu.edu.cn | - |
✅ Authoritative Response
Server:202.204.128.12
NS records: bfsuweb.bfsu.edu.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bfsu.cn (unsigned zone)
⏱️ Timing
Total: 4308ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
Delegation for bfsu.cn is handled by a single name server, bfsuweb.bfsu.edu.cn.
bfsu.cn shares name servers with other domains at least partially, for example bfsu.edu.cn.
These name servers are commonly used with bfsuins.bfsu.edu.cn and ns2.bfsu.edu.cn.
bfsuweb.bfsu.edu.cn resolves to two IPs: 2001:da8:20f:3032::12 and 202.204.128.12.