21dc.com.cn - robtex.com
21dc.com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns23.hichina.com ⭐ | ||||||
| A | 2408:4009:501::31🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.40🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.60🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.200🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.220🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.40🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.60🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.100🇨🇳 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 | 139.224.142.110🇨🇳 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 | dns24.hichina.com | ||||||
| A | 2408:4009:501::32🇨🇳 Alibaba-Cloud2408:4009:501::/48 | ||||||
| A | 39.96.153.38🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 39.96.153.61🇨🇳 Alibaba-Cloud39.96.0.0/14 CT BeiJing IDC | ||||||
| A | 47.118.199.198🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 47.118.199.222🇨🇳 Alibaba-Cloud47.118.128.0/17 Alibaba (US) Technology Co., Ltd. | ||||||
| A | 120.76.107.38🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 120.76.107.61🇨🇳 Alibaba-Cloud120.76.0.0/17 | ||||||
| A | 139.224.142.98🇨🇳 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 | 139.224.142.108🇨🇳 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 | dns23.hichina.comhostmaster@hichina.com 2026-01-12 #9 | ||||||
com.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=2030570481 | ||||||
Same first word
21dc.com.cn |
Similar names
dc21.com |
21cd.net |
1dc2.com |
cd21.fr |
cd12.cn |
c1d2.xyz |
d1c2.com |
12cd.com |
cd12.org |
d21c.com |
c1d2.com |
12cd.us |
cd12.com |
cd21.com |
21cd.cn |
cd21.nl |
21cd.cc |
21cd.com |
dc12.org |
dc21.us |
2c1d.com |
c12d.com |
dc21.tv |
DNS History
2 records (2 active, 0 former)
●NSdns23.hichina.com2026-04-28 → 2026-05-15 · 2 obs
● 2026-05-15 19:54:14
●NSdns24.hichina.com2026-04-28 → 2026-05-15 · 2 obs
● 2026-05-15 19:54:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, d.dns.cn, e.dns.cn, b.dns.cn... | - |
| 21dc.com.cn | dns23.hichina.com, dns24.hichina.com | - |
✅ Authoritative Response
Server:47.118.199.198
NS records: dns23.hichina.com, dns24.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21dc.com.cn (unsigned zone)
⏱️ Timing
Total: 1856ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns23.hichina.com, dns24.hichina.com |
| SOA | 1 | dns23.hichina.com hostmaster.hichina.com |
Analysis
Name Servers
Two name servers dns23.hichina.com and dns24.hichina.com are delegated to 21dc.com.cn.
21dc.com.cn uses the same name server configuration as other domains, such as womell.com, miozd.com, gclsh.com, xn--pbtq60b3nuufhp6curs.cn and wk2.cn.
21dc.com.cn at least partially shares name servers with other domains such as gdlipai.com, huanglian.cn, stanton.cn, jtyx.cn and yomo.com.cn.
These name servers are commonly used with expirens3.hichina.com, expirens4.hichina.com, ns1.alidns.com and ns2.alidns.com.
Two hosts with nine IPs each:
Host dns23.hichina.com points to 2408:4009:501::31, 39.96.153.40, 39.96.153.60, 47.118.199.200, 47.118.199.220, 120.76.107.40, 120.76.107.60, 139.224.142.100 and 139.224.142.110.
Host dns24.hichina.com points to 2408:4009:501::32, 39.96.153.38, 39.96.153.61, 47.118.199.198, 47.118.199.222, 120.76.107.38, 120.76.107.61, 139.224.142.98 and 139.224.142.108.