sciencecom.cn - robtex.com
sciencecom.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 124.133.230.252🇨🇳 CHINA169-Backbone124.128.0.0/13 CNC Group CHINA169 Shandong Province Network | ||||||
| NS | dns21.hichina.com ⭐ | ||||||
| A | 2408:4009:501::29🇨🇳 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 | dns22.hichina.com | ||||||
| A | 2408:4009:501::30🇨🇳 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, | ||||||
| MX | mail.sciencecom.cn ⭐ | ||||||
| A | 124.133.35.228🇨🇳 CHINA169-Backbone124.128.0.0/13 CNC Group CHINA169 Shandong Province Network | ||||||
| SOA | dns21.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=2034667784 | ||||||
Subdomains
mail.sciencecom.cn |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSdns21.hichina.com2026-04-09 → 2026-04-14 · 2 obs
● 2026-04-14 01:56:10
●NSdns22.hichina.com2026-04-09 → 2026-04-14 · 2 obs
● 2026-04-14 01:56:10
●MXmail.sciencecom.cn2026-04-09 → 2026-04-14 · 2 obs
● 2026-04-14 01:56:10
●A124.133.230.2522026-04-09 → 2026-04-14 · 2 obs
● 2026-04-14 01:56:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | c.dns.cn, b.dns.cn, e.dns.cn, a.dns.cn... | - |
| sciencecom.cn | dns21.hichina.com, dns22.hichina.com | - |
✅ Authoritative Response
Server:47.118.199.220
NS records: dns21.hichina.com, dns22.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sciencecom.cn (unsigned zone)
⏱️ Timing
Total: 4271ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 124.133.230.252 |
| NS | 2 | dns21.hichina.com, dns22.hichina.com |
| MX | 1 | mail.sciencecom.cn (pri: 10) |
| SOA | 1 | dns21.hichina.com hostmaster.hichina.com |
Analysis
Hierarchy
sciencecom.cn is the parent of mail.sciencecom.cn.
IP Addresses
sciencecom.cn points to a single IP number: 124.133.230.252.
Name Servers
sciencecom.cn is delegated to two name servers: dns21.hichina.com and dns22.hichina.com.
sciencecom.cn shares the same name server setup as other domains, for example deshijituan.com, 13579a.com, iec68.com, chinalnfo.com and sks.cn.
sciencecom.cn at least partially shares name servers with other domains, for example lixuadmin.top and mltw.cn.
These name servers are often used with expirens3.hichina.com and expirens4.hichina.com.
Host names with nine IP numbers:
dns21.hichina.com points to: 2408:4009:501::29, 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.
dns22.hichina.com points to: 2408:4009:501::30, 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.
Mail Servers
sciencecom.cn is handled by a single mail server, mail.sciencecom.cn.
Host name mail.sciencecom.cn points to IP address 124.133.35.228.