21cf.org.cn - robtex.com
21cf.org.cn
org.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | c.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | cns.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | d.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | e.dns.cn ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2027844328 | ||||||
Same first word
Similar names
fc21.com |
12cf.com.cn |
cf12.org |
fc21.cn |
fc21.jp |
1c2f.tv |
fc21.co.jp |
1c2f.com |
cf12.com |
fc12.cn |
21fc.net |
c21f.com |
cf21.com |
f12c.com |
fc12.com |
21fc.com |
12fc.com |
c1f2.com |
12fc.nl |
cf12.net |
2f1c.com |
DNS History
2 records (2 active, 0 former)
●NSdns1.cscdns.net2026-04-09 → 2026-04-13 · 2 obs
● 2026-04-09 12:00:48
● 2026-04-13 11:02:14
● 2026-04-13 11:02:14
●NSdns2.cscdns.net2026-04-09 → 2026-04-13 · 2 obs
● 2026-04-09 12:00:48
● 2026-04-13 11:02:14
● 2026-04-13 11:02:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| 21cf.org.cn | dns1.cscdns.net, dns2.cscdns.net | - |
✅ Authoritative Response
Server:156.154.130.100
NS records: dns1.cscdns.net, dns2.cscdns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21cf.org.cn (unsigned zone)
⏱️ Timing
Total: 578ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns1.cscdns.net, dns2.cscdns.net |
| SOA | 1 | dns1.cscdns.net hostmaster.cscdns.net |
Analysis
Name Servers
Two name servers dns1.cscdns.net and dns2.cscdns.net handle delegation for 21cf.org.cn.
21cf.org.cn uses the same name server setup as other domains, for example pagesjaunesautomoto.com, hcpspinraza.com, newjerseymarathon.com, nationalbroadbandnetwork.au and discoverpandora.com.cn.
21cf.org.cn shares name servers with other domains at least in part, for instance 367collinsfalcons.com.au.
Host names with two IP numbers:
dns1.cscdns.net points to: 2610:a1:1022::100 and 156.154.130.100
dns2.cscdns.net points to: 2610:a1:1023::100 and 156.154.131.100