a8book.cn - robtex.com
a8book.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=2034788515 | ||||||
DNS History
3 records (0 active, 3 former)
○NSdns17.hichina.com2015-06-25 → 2015-12-13 · 4 obs
● 2015-06-25 08:27:02
● 2015-12-13 22:34:00
○ 2016-03-16 06:00:08
○ 2026-05-13 20:28:54
● 2015-12-13 22:34:00
○ 2016-03-16 06:00:08
○ 2026-05-13 20:28:54
○NSdns18.hichina.com2015-06-25 → 2015-12-13 · 4 obs
● 2015-06-25 08:27:02
● 2015-12-13 22:34:00
○ 2016-03-16 06:00:08
○ 2026-05-13 20:28:54
● 2015-12-13 22:34:00
○ 2016-03-16 06:00:08
○ 2026-05-13 20:28:54
○A114.113.145.142015-06-25 → 2015-12-13 · 4 obs
● 2015-06-25 08:27:02
● 2015-12-13 22:34:00
○ 2016-03-16 06:00:08
○ 2026-05-13 20:28:54
● 2015-12-13 22:34:00
○ 2016-03-16 06:00:08
○ 2026-05-13 20:28:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
✅ Authoritative Response
Server:203.119.28.1
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: 3697ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|