dc-edu.net - robtex.com
dc-edu.net
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns9.hichina.com ⭐ | ||||||
| A | 2408:4009:501::17🇨🇳 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 | dns10.hichina.com | ||||||
| A | 2408:4009:501::18🇨🇳 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, | ||||||
| MX | mail.dc-edu.net ⭐ | ||||||
| A | 218.15.237.229🇨🇳 CHINANET-BACKBONE218.14.0.0/15 China Telecom Data Network Management Division Network Operation & Maintenance Department No 19 Chaoyangmen North Street Dongcheng District | ||||||
| MX | mxbiz2.qq.com(10) | ||||||
| SOA | dns9.hichina.comhostmaster@hichina.com 2026-01-09 #13 | ||||||
net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1778616821 | ||||||
Subdomains
mail.dc-edu.net |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSdns10.hichina.com2017-01-04 → 2026-05-12 · 2 obs
● 2026-05-12 20:19:28
●NSdns9.hichina.com2017-01-04 → 2026-05-12 · 2 obs
● 2026-05-12 20:19:28
●MXmail.dc-edu.net2017-01-04 → 2026-05-12 · 2 obs
● 2026-05-12 20:19:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | g.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net, m.gtld-servers.net... | - |
| dc-edu.net | dns9.hichina.com, dns10.hichina.com | - |
✅ Authoritative Response
Server:47.118.199.212
NS records: dns9.hichina.com, dns10.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dc-edu.net (unsigned zone)
⏱️ Timing
Total: 3895ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns10.hichina.com, dns9.hichina.com |
| MX | 2 | mxbiz2.qq.com (pri: 10), mail.dc-edu.net (pri: 1) |
| SOA | 1 | dns9.hichina.com hostmaster.hichina.com |
Analysis
Hierarchy
dc-edu.net is a parent of mail.dc-edu.net.
Name Servers
dc-edu.net is delegated to two name servers: dns10.hichina.com and dns9.hichina.com.
dc-edu.net uses the same name server setup as other domains, including imkiss.com, haietong.cn, jsmtzx.com, bestwaycorp.cn and agiso.net.
dc-edu.net partially shares name servers with other domains, for instance nudism.com.cn, whtm.cn, zxuni.org and zzsdesign.com.
Host names with nine IP numbers:
dns10.hichina.com points to: 2408:4009:501::18, 39.96.153.41, 39.96.153.51, 47.118.199.201, 47.118.199.211, 120.76.107.41, 120.76.107.51, 139.224.142.111 and 139.224.142.121.
dns9.hichina.com points to: 2408:4009:501::17, 39.96.153.42, 39.96.153.52, 47.118.199.202, 47.118.199.212, 120.76.107.42, 120.76.107.52, 139.224.142.112 and 139.224.142.122.
Mail Servers
dc-edu.net is handled by two mail servers: mxbiz2.qq.com and mail.dc-edu.net.
dc-edu.net shares at least some mail servers with other domains, for example cfmi.org.cn, hc-foundry.com, rastargz.com, ehua.com.cn and workgroups.net.cn.
These mail servers are commonly used alongside mxbiz1.qq.com, mxn.mxhichina.com and mxw.mxhichina.com.
Host names with a single IP: mail.dc-edu.net resolves to 218.15.237.229.