learningcode.cn - robtex.com
learningcode.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=2035411765 | ||||||
Same first word
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DNS History
5 records (0 active, 5 former)
○NSdns10.hichina.com2015-12-07 → 2016-03-12 · 4 obs
● 2015-12-07 03:25:10
● 2016-03-12 12:36:02
○ 2017-03-15 04:11:42
○ 2026-10-09 20:09:12
● 2016-03-12 12:36:02
○ 2017-03-15 04:11:42
○ 2026-10-09 20:09:12
○NSdns11.hichina.com2020-01-13 → 2020-01-13 · 4 obs
○ 2017-03-15 04:11:42
● 2020-01-13 21:20:08
○ 2026-08-29 16:47:48
○ 2026-10-09 20:09:12
● 2020-01-13 21:20:08
○ 2026-08-29 16:47:48
○ 2026-10-09 20:09:12
○NSdns12.hichina.com2020-01-13 → 2020-01-13 · 4 obs
○ 2017-03-15 04:11:42
● 2020-01-13 21:20:08
○ 2026-08-29 16:47:48
○ 2026-10-09 20:09:12
● 2020-01-13 21:20:08
○ 2026-08-29 16:47:48
○ 2026-10-09 20:09:12
○NSdns9.hichina.com2015-12-07 → 2016-03-12 · 4 obs
● 2015-12-07 03:25:10
● 2016-03-12 12:36:02
○ 2017-03-15 04:11:42
○ 2026-10-09 20:09:12
● 2016-03-12 12:36:02
○ 2017-03-15 04:11:42
○ 2026-10-09 20:09:12
○A192.30.252.1532015-12-07 → 2016-03-12 · 4 obs
● 2015-12-07 03:25:10
● 2016-03-12 12:36:02
○ 2017-03-15 04:11:42
○ 2026-10-09 20:09:12
● 2016-03-12 12:36:02
○ 2017-03-15 04:11:42
○ 2026-10-09 20:09:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
✅ Authoritative Response
Server:203.119.27.1
NS records: e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn, b.dns.cn
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn
⏱️ Timing
Total: 3396ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|