book92.cn - robtex.com
book92.cn
| DNSSEC | ⚠️ Not signed | ||||||
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=2034590408 | ||||||
Same first word
Similar names
DNS History
3 records (0 active, 3 former)
○NSns1.nowcndns.com2026-03-05 → 2026-03-05 · 2 obs
● 2026-03-05 21:22:20
○ 2026-03-26 18:45:10
○ 2026-03-26 18:45:10
○NSns2.nowcndns.com2026-03-05 → 2026-03-05 · 2 obs
● 2026-03-05 21:22:20
○ 2026-03-26 18:45:10
○ 2026-03-26 18:45:10
○A38.238.233.1722026-03-05 → 2026-03-05 · 2 obs
● 2026-03-05 21:22:20
○ 2026-03-26 18:45:10
○ 2026-03-26 18:45:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
✅ Authoritative Response
Server:203.119.27.1
NS records: a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn, e.dns.cn
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 3561ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|