cryptology.cn - robtex.com
cryptology.cn
| CNAME | overdue.aliyun.com | ||||||
| DNSSEC | ⚠️ Not signed | ||||||
| A | 170.33.12.185🇸🇬 Alibaba_Cloud_SEC170.33.12.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
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=2034586717 | ||||||
Same first word
cryptology.com |
cryptology.school |
cryptology.ru |
cryptology.education |
cryptology.ch |
cryptology.cn |
cryptology.site |
DNS History
8 records (3 active, 5 former)
●NSdns21.hichina.com2026-03-10 → 2026-03-25 · 3 obs
○ 2017-08-06 23:20:50
● 2026-03-10 09:25:42
● 2026-03-25 20:40:16
● 2026-03-10 09:25:42
● 2026-03-25 20:40:16
●NSdns22.hichina.com2026-03-10 → 2026-03-25 · 3 obs
○ 2017-08-06 23:20:50
● 2026-03-10 09:25:42
● 2026-03-25 20:40:16
● 2026-03-10 09:25:42
● 2026-03-25 20:40:16
○NSns01.trademarkarea.com2017-08-06 → 2017-08-06 · 3 obs
● 2017-08-06 23:20:50
○ 2026-03-10 09:25:42
○ 2026-03-25 20:40:16
○ 2026-03-10 09:25:42
○ 2026-03-25 20:40:16
○NSns02.trademarkarea.com2017-08-06 → 2017-08-06 · 3 obs
● 2017-08-06 23:20:50
○ 2026-03-10 09:25:42
○ 2026-03-25 20:40:16
○ 2026-03-10 09:25:42
○ 2026-03-25 20:40:16
○NSns03.trademarkarea.com2017-08-06 → 2017-08-06 · 3 obs
● 2017-08-06 23:20:50
○ 2026-03-10 09:25:42
○ 2026-03-25 20:40:16
○ 2026-03-10 09:25:42
○ 2026-03-25 20:40:16
○A192.230.79.892017-08-06 → 2017-08-06 · 3 obs
● 2017-08-06 23:20:50
○ 2026-03-10 09:25:42
○ 2026-03-25 20:40:16
○ 2026-03-10 09:25:42
○ 2026-03-25 20:40:16
○A199.83.135.1022017-08-06 → 2017-08-06 · 3 obs
● 2017-08-06 23:20:50
○ 2026-03-10 09:25:42
○ 2026-03-25 20:40:16
○ 2026-03-10 09:25:42
○ 2026-03-25 20:40:16
●CNAMEoverdue.aliyun.com2026-03-10 → 2026-03-25 · 2 obs
● 2026-03-10 09:25:42
● 2026-03-25 20:40:16
● 2026-03-25 20:40:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| cryptology.cn | dns21.hichina.com, dns22.hichina.com | - |
✅ Authoritative Response
Server:139.224.142.108
NS records: dns21.hichina.com, dns22.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cryptology.cn (unsigned zone)
⏱️ Timing
Total: 1449ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns22.hichina.com, dns21.hichina.com |
| CNAME | 1 | overdue.aliyun.com |
| SOA | 1 | dns21.hichina.com hostmaster.hichina.com |
Analysis
IP Addresses
cryptology.cn points to a single IP number: 170.33.12.185.
Other host names, for instance jdcar.com, fkcx.cn, hldm.cn, ahjq.cn and bpsp.cn share IP numbers with cryptology.cn.