ctfc.cn - robtex.com
ctfc.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 18.140.0.172🇸🇬 Amazon18.140.0.0/15 EC2 SIN prefix | ||||||
| PTR | ec2-18-140-0-172.ap-southeast-1.compute.amazonaws.com | ||||||
| NS | ns1.net7.net ⚠️ Not in zone NS records | ||||||
| A | 18.140.0.172🇸🇬 Amazon18.140.0.0/15 EC2 SIN prefix | ||||||
| PTR | ec2-18-140-0-172.ap-southeast-1.compute.amazonaws.com | ||||||
| NS | ns2.net7.net ⚠️ Not in zone NS records | ||||||
| A | 18.140.0.172🇸🇬 Amazon18.140.0.0/15 EC2 SIN prefix | ||||||
| PTR | ec2-18-140-0-172.ap-southeast-1.compute.amazonaws.com | ||||||
| TXT | domain name owner: dn4biz@gmail.com | ||||||
| TXT | 92eb803b122682c8bf592cac5d073d27941b1ed6 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| 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=2034660745 | ||||||
Same first word
ctfc.cat |
ctfc.shop |
ctfc.us |
ctfc.cn |
ctfc.com |
ctfc.es |
ctfc.net |
ctfc.ru |
ctfc.de |
ctfc.co.nz |
ctfc.org |
ctfc.org.cn |
ctfc.club |
ctfc.ca |
ctfc.fr |
Similar names
DNS History
6 records (3 active, 3 former)
○NSf1g1ns1.dnspod.net2015-06-17 → 2017-06-13 · 4 obs
● 2017-06-13 08:17:44
○ 2026-04-10 15:40:20
○ 2026-04-12 02:12:04
○NSf1g1ns2.dnspod.net2015-06-17 → 2017-06-13 · 4 obs
● 2017-06-13 08:17:44
○ 2026-04-10 15:40:20
○ 2026-04-12 02:12:04
●NSns1.net7.net2026-04-10 → 2026-04-12 · 3 obs
● 2026-04-10 15:40:20
● 2026-04-12 02:12:04
●NSns2.net7.net2026-04-10 → 2026-04-12 · 3 obs
● 2026-04-10 15:40:20
● 2026-04-12 02:12:04
○A122.10.114.102017-06-13 → 2017-06-13 · 3 obs
○ 2026-04-10 15:40:20
○ 2026-04-12 02:12:04
●A18.140.0.1722026-04-10 → 2026-04-12 · 3 obs
● 2026-04-10 15:40:20
● 2026-04-12 02:12:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, b.dns.cn... | - |
| ctfc.cn | ns1.net7.net, ns2.net7.net | - |
✅ Authoritative Response
Server:18.140.0.172
NS records: ns1.net7.net, ns2.net7.net
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn
⏱️ Timing
Total: 3694ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 18.140.0.172 |
| TXT | 2 | domain name owner: dn4biz@gmail.com, 92eb803b122682c8bf592cac5d073d27941b1ed |
Analysis
IP Addresses
ctfc.cn resolves to one IP number: 18.140.0.172.
Other host names, for instance yoshine.com, strongbox.cn, ccoc.cn, eguan.com and kalo.cn share IP numbers with ctfc.cn.
Name Servers
ctfc.cn's delegation uses two name servers: ns1.net7.net and ns2.net7.net.
ctfc.cn uses the same name server setup as other domains, such as biomass.cn, goosun.com, studio4.com, freeforest.com and spacetec.cn.
Host names with a single IP number:
The host name ns1.net7.net points to 18.140.0.172.
The host name ns2.net7.net points to 18.140.0.172.
Host names pointing to 18.140.0.172: ns1.net7.net and ns2.net7.net.