three.cn - robtex.com
three.cn
| CNAME | overdue.aliyun.com | ||||||
| DNSSEC | ⚠️ Not signed | ||||||
| A | 170.33.12.185🇸🇬 Alibaba_Cloud_SEC170.33.12.0/24 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
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=2035057629 | ||||||
Same first word
Similar names
DNS History
6 records (3 active, 3 former)
●NSdns1.hichina.com2017-03-24 → 2026-07-18 · 3 obs
○ 2016-07-23 22:34:02
● 2017-03-24 22:45:06
● 2026-07-18 20:58:50
● 2017-03-24 22:45:06
● 2026-07-18 20:58:50
●NSdns2.hichina.com2017-03-24 → 2026-07-18 · 3 obs
○ 2016-07-23 22:34:02
● 2017-03-24 22:45:06
● 2026-07-18 20:58:50
● 2017-03-24 22:45:06
● 2026-07-18 20:58:50
○NSns.email.com.cn2015-05-23 → 2016-07-23 · 4 obs
● 2015-05-23 07:08:36
● 2016-07-23 22:34:02
○ 2017-03-24 22:45:06
○ 2026-07-18 20:58:50
● 2016-07-23 22:34:02
○ 2017-03-24 22:45:06
○ 2026-07-18 20:58:50
○NSns2.email.com.cn2015-05-23 → 2016-07-23 · 4 obs
● 2015-05-23 07:08:36
● 2016-07-23 22:34:02
○ 2017-03-24 22:45:06
○ 2026-07-18 20:58:50
● 2016-07-23 22:34:02
○ 2017-03-24 22:45:06
○ 2026-07-18 20:58:50
○A23.27.192.1172015-05-23 → 2018-01-20 · 4 obs
● 2015-05-23 07:08:36
● 2018-01-20 15:23:44
○ 2019-08-25 07:31:52
○ 2026-07-18 20:58:50
● 2018-01-20 15:23:44
○ 2019-08-25 07:31:52
○ 2026-07-18 20:58:50
●CNAMEoverdue.aliyun.com2019-08-25 → 2026-07-18 · 2 obs
● 2019-08-25 07:31:52
● 2026-07-18 20:58:50
● 2026-07-18 20:58:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | d.dns.cn, a.dns.cn, b.dns.cn, c.dns.cn... | - |
| three.cn | dns1.hichina.com, dns2.hichina.com | - |
✅ Authoritative Response
Server:120.76.107.54
NS records: dns1.hichina.com, dns2.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for three.cn (unsigned zone)
⏱️ Timing
Total: 2985ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns2.hichina.com, dns1.hichina.com |
| CNAME | 1 | overdue.aliyun.com |
| SOA | 1 | dns1.hichina.com hostmaster.hichina.com |
Analysis
IP Addresses
three.cn points to a single IP number: 170.33.12.185.
Additional host names — bc4399.com, dounao.com, topoac.com and two others — share IP numbers with three.cn.