ctfdata.cn - dns.ninja
ctfdata.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns01 ⭐ | ||||||
| NS | ns1.ctfdata.cn | ||||||
| A | 203.198.63.10🇭🇰 PCCW-IMSBIZ-Network203.198.56.0/21 PCCW IMS Limited 14/F, Lockhart Exchange Bldg No. 3 Hennessy Road | ||||||
| PTR | 010.63.198.203.static.netvigator.com | ||||||
| NS | ns2.ctfdata.cn | ||||||
| A | 203.198.63.12🇭🇰 PCCW-IMSBIZ-Network203.198.56.0/21 PCCW IMS Limited 14/F, Lockhart Exchange Bldg No. 3 Hennessy Road | ||||||
| PTR | 012.63.198.203.static.netvigator.com | ||||||
| SOA | ns01hostmaster serial=13 | ||||||
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=2035160764 | ||||||
Subdomains
Same first word
Similar names
DNS History
5 records (3 active, 2 former)
●NSns012026-02-16 → 2026-08-09 · 3 obs
● 2026-02-16 11:34:48
● 2026-08-09 19:59:58
○NSns12020-04-04 → 2020-04-04 · 3 obs
○ 2026-02-16 11:34:48
○ 2026-08-09 19:59:58
●NSns1.ctfdata.cn2020-04-04 → 2026-08-09 · 2 obs
● 2026-08-09 19:59:58
●NSns2.ctfdata.cn2020-04-04 → 2026-08-09 · 2 obs
● 2026-08-09 19:59:58
○MXhub01.ctfdata.cn2020-04-04 → 2026-02-16 · 4 obs
● 2026-02-16 11:34:48
○ 2026-03-24 16:22:02
○ 2026-08-09 19:59:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| ctfdata.cn | ns1.ctfdata.cn, ns2.ctfdata.cn | 2 records |
✅ Authoritative Response
Server:203.198.63.12
NS records: ns1.ctfdata.cn, ns2.ctfdata.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctfdata.cn (unsigned zone)
⏱️ Timing
Total: 1187ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.ctfdata.cn, ns2.ctfdata.cn |
| SOA | 1 | ns01 hostmaster |
📌 Glue Records Collected
Total: 2
In-bailiwick: 2 (ns1.ctfdata.cn, ns2.ctfdata.cn)
Analysis
Hierarchy
ns1.ctfdata.cn and ns2.ctfdata.cn each fall under ctfdata.cn as their parent domain.
Name Servers
ctfdata.cn has three name servers — ns01, ns1.ctfdata.cn and ns2.ctfdata.cn.
The name servers of ctfdata.cn overlap at least partially with those of other domains — among them kizilayhuzurevi.org.tr, pbank.net.au, ddd-3d.com and two more.
These name servers commonly appear in delegations together with ns1.kizilay.org.tr, ns2.kizilay.org.tr, ns01.domainserver.ne.jp and 7 other.
Both ns1.ctfdata.cn and ns2.ctfdata.cn have a single IP address each — ns1.ctfdata.cn resolves to 203.198.63.10 while ns2.ctfdata.cn resolves to 203.198.63.12.