ctwcdn.cn - robtex.com
ctwcdn.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.ctwcdn.cn ⭐ | ||||||
| NS | ns2.ctwcdn.cn | ||||||
| NS | ns3.ctwcdn.cn | ||||||
| NS | ns4.ctwcdn.cn | ||||||
| SOA | ns1.ctwcdn.cnweb@ctwcdn.cn 2008-08-27 #0 | ||||||
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=2034785310 | ||||||
Same first word
ctwcdn.cn |
Similar names
DNS History
4 records (4 active, 0 former)
●NSns1.ctwcdn.cn2026-02-14 → 2026-05-13 · 2 obs
● 2026-02-14 22:36:26
● 2026-05-13 03:09:08
● 2026-05-13 03:09:08
●NSns2.ctwcdn.cn2026-02-14 → 2026-05-13 · 2 obs
● 2026-02-14 22:36:26
● 2026-05-13 03:09:08
● 2026-05-13 03:09:08
●NSns3.ctwcdn.cn2026-02-14 → 2026-05-13 · 2 obs
● 2026-02-14 22:36:26
● 2026-05-13 03:09:08
● 2026-05-13 03:09:08
●NSns4.ctwcdn.cn2026-02-14 → 2026-05-13 · 2 obs
● 2026-02-14 22:36:26
● 2026-05-13 03:09:08
● 2026-05-13 03:09:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| ctwcdn.cn | ns1.ctwcdn.cn, ns2.ctwcdn.cn, ns3.ctwcdn.cn, ns4.ctwcdn.cn | 8 records |
✅ Authoritative Response
Server:180.153.82.88
NS records: ns1.ctwcdn.cn, ns2.ctwcdn.cn, ns3.ctwcdn.cn, ns4.ctwcdn.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctwcdn.cn (unsigned zone)
⏱️ Timing
Total: 1153ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns2.ctwcdn.cn, ns1.ctwcdn.cn... |
| SOA | 1 | ns1.ctwcdn.cn web.ctwcdn.cn |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (ns1.ctwcdn.cn, ns1.ctwcdn.cn, ns2.ctwcdn.cn...)
Analysis
Name Servers
ctwcdn.cn is delegated to four name servers: ns1.ctwcdn.cn, ns2.ctwcdn.cn, ns3.ctwcdn.cn and ns4.ctwcdn.cn.