bookimg.cn - robtex.com
bookimg.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=2034668921 | ||||||
Same first word
Similar names
DNS History
7 records (0 active, 7 former)
○NSdm1.longmingdns.com2026-04-14 → 2026-04-14 · 2 obs
○ 2026-04-14 08:10:24
○ 2026-04-14 08:10:28
○ 2026-04-14 08:10:28
○NSdm2.longmingdns.com2026-04-14 → 2026-04-14 · 2 obs
○ 2026-04-14 08:10:24
○ 2026-04-14 08:10:28
○ 2026-04-14 08:10:28
○NSns19.xincache.com2017-12-08 → 2017-12-08 · 3 obs
● 2017-12-08 19:55:40
○ 2026-04-14 08:10:24
○ 2026-04-14 08:10:28
○ 2026-04-14 08:10:24
○ 2026-04-14 08:10:28
○A121.12.170.1052015-06-02 → 2016-01-20 · 4 obs
● 2015-06-02 02:32:50
● 2016-01-20 16:20:14
○ 2016-12-31 12:14:18
○ 2026-04-14 08:10:28
● 2016-01-20 16:20:14
○ 2016-12-31 12:14:18
○ 2026-04-14 08:10:28
○A121.12.170.222015-06-02 → 2016-12-31 · 6 obs
● 2015-06-02 02:32:50
● 2015-10-20 23:59:38
○ 2016-01-20 16:20:14
● 2016-12-31 12:14:18
○ 2017-12-08 19:55:40
○ 2026-04-14 08:10:28
● 2015-10-20 23:59:38
○ 2016-01-20 16:20:14
● 2016-12-31 12:14:18
○ 2017-12-08 19:55:40
○ 2026-04-14 08:10:28
○A38.181.160.62026-04-14 → 2026-04-14 · 2 obs
○ 2026-04-14 08:10:24
○ 2026-04-14 08:10:28
○ 2026-04-14 08:10:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
✅ Authoritative Response
Server:203.119.29.1
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: 3705ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|