17learning.com.cn - robtex.com
17learning.com.cn
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=2030470798 | ||||||
Same first word
17learning.com.cn |
DNS History
2 records (2 active, 0 former)
●NSdns13.hichina.com2026-03-03 → 2026-03-23 · 2 obs
● 2026-03-23 17:44:24
●NSdns14.hichina.com2026-03-03 → 2026-03-23 · 2 obs
● 2026-03-23 17:44:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| 17learning.com.cn | dns13.hichina.com, dns14.hichina.com | - |
✅ Authoritative Response
Server:139.224.142.121
NS records: dns13.hichina.com, dns14.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 17learning.com.cn (unsigned zone)
⏱️ Timing
Total: 4598ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns14.hichina.com, dns13.hichina.com |
| SOA | 1 | dns13.hichina.com hostmaster.hichina.com |
Analysis
Name Servers
Delegation for 17learning.com.cn rests with two name servers, dns13.hichina.com and dns14.hichina.com.
17learning.com.cn shares the same name server setup as other domains, including addally.net, dfyl.cn, sanyacom.com, td2.cn and 300a.net.
17learning.com.cn partially shares name servers with other domains, for instance xcx.hk, jtaow.com, spulon.com and 706net.com.
These name servers are commonly used with expirens3.hichina.com and expirens4.hichina.com.
Host names with nine IP numbers:
dns13.hichina.com points to: 2408:4009:501::21, 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.
dns14.hichina.com points to: 2408:4009:501::22, 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.