ctfr.cn - robtex.com
ctfr.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 43.135.47.28🇭🇰 TENCENT-NET-AP-CN43.135.0.0/18 ACEVILLE PTE.LTD. 16 COLLYER QUAY 18-29 INCOME AT RAFFLES | ||||||
| NS | ns1.julydns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 47.97.51.45🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD | ||||||
| NS | ns1.judns.com ⚠️ Not in zone NS records | ||||||
| A | 47.97.51.45🇨🇳 Alibaba-Cloud47.96.0.0/15 Aliyun Computing Co., LTD | ||||||
| NS | ns2.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1774336176 | ||||||
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=2034594203 | ||||||
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
○NSns1.alidns.com2015-08-20 → 2015-08-20 · 3 obs
○ 2026-03-27 12:26:46
○ 2026-03-27 15:08:30
●NSns1.judns.com2026-03-27 → 2026-03-27 · 3 obs
● 2026-03-27 12:26:46
● 2026-03-27 15:08:30
●NSns1.julydns.com2026-03-27 → 2026-03-27 · 3 obs
● 2026-03-27 12:26:46
● 2026-03-27 15:08:30
○NSns2.alidns.com2015-08-20 → 2015-08-20 · 3 obs
○ 2026-03-27 12:26:46
○ 2026-03-27 15:08:30
●NSns2.judns.com2026-03-27 → 2026-03-27 · 3 obs
● 2026-03-27 12:26:46
● 2026-03-27 15:08:30
●NSns2.julydns.com2026-03-27 → 2026-03-27 · 3 obs
● 2026-03-27 12:26:46
● 2026-03-27 15:08:30
●A43.135.47.282026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 15:08:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| ctfr.cn | ns1.judns.com, ns2.judns.com | - |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.judns.com, ns2.judns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctfr.cn (unsigned zone)
⏱️ Timing
Total: 4217ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 43.135.47.28 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
IP Addresses
ctfr.cn points to a single IP: 43.135.47.28.
Other host names, for instance lxqb.cn, pypm.cn, pckb.cn, lpkc.cn and bsmw.cn share IP numbers with ctfr.cn.
Name Servers
ctfr.cn's delegation is handled by four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
ctfr.cn partially shares name servers with other domains; examples include designrx.net, bet365xlh.com, hvj.cn, simplehua.com and lone-peak.com.
Host names with one IP number:
ns1.judns.com points to: 47.97.51.45; ns2.judns.com points to: 162.159.27.251; ns1.julydns.com points to: 47.97.51.45; ns2.julydns.com points to: 162.159.48.223.
Host names that point to 47.97.51.45: ns1.judns.com and ns1.julydns.com.