c4doc.cn - robtex.com
c4doc.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 139.196.104.88🇨🇳 Alibaba-Cloud139.196.0.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| NS | dns13.hichina.com ⭐ | ||||||
| A | 2408:4009:501::21🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.42🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.52🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.202🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.212🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.42🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.52🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.112🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.122🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| NS | dns14.hichina.com | ||||||
| A | 2408:4009:501::22🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.41🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.51🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.201🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.211🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.41🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.51🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.111🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| A | 139.224.142.121🇨🇳 Alibaba-Cloud139.224.128.0/17 China Internet Network Information Center Floor1, Building No.1 C/-Chinese Academy of Sciences 4, South 4th Street Haidian District, | ||||||
| SOA | dns13.hichina.comhostmaster@hichina.com 2026-01-12 #9 | ||||||
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=2034809151 | ||||||
Same first word
c4doc.cn |
Similar names
DNS History
3 records (3 active, 0 former)
●NSdns13.hichina.com2026-04-20 → 2026-05-18 · 2 obs
● 2026-05-18 19:54:28
●NSdns14.hichina.com2026-04-20 → 2026-05-18 · 2 obs
● 2026-05-18 19:54:28
●A139.196.104.882026-04-20 → 2026-05-18 · 2 obs
● 2026-05-18 19:54:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| c4doc.cn | dns13.hichina.com, dns14.hichina.com | - |
✅ Authoritative Response
Server:139.224.142.122
NS records: dns13.hichina.com, dns14.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for c4doc.cn (unsigned zone)
⏱️ Timing
Total: 2176ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 139.196.104.88 |
| NS | 2 | dns14.hichina.com, dns13.hichina.com |
| SOA | 1 | dns13.hichina.com hostmaster.hichina.com |
Analysis
IP Addresses
c4doc.cn points to one IP number: 139.196.104.88.
Other host names, for instance gaoimg.com and psdimg.com share IP numbers with c4doc.cn.
Name Servers
c4doc.cn is delegated to two name servers, dns13.hichina.com and dns14.hichina.com.
c4doc.cn shares the same name server setup with other domains, for instance talksphp.com, frex.cn, tghxc.com and 2 other.
c4doc.cn at least partially shares name servers with other domains, for instance easycarwash.xyz, 8k6r.top, bellaok.com and fnbu.com.
These name servers are often used together with the name servers expirens3.hichina.com and expirens4.hichina.com.
Host names with 9 IP numbers:
The host name dns13.hichina.com points to: 39.96.153.42, 39.96.153.52, 47.118.199.202 and 6 other.
The host name dns14.hichina.com points to: 39.96.153.41, 39.96.153.51, 47.118.199.201 and 6 other.