alert.cn - robtex.com
alert.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=2035055941 | ||||||
Same first word
Similar names
DNS History
7 records (3 active, 4 former)
●NSdns1.hichina.com2016-12-18 → 2026-07-18 · 3 obs
○ 2016-08-19 05:34:02
● 2016-12-18 10:57:30
● 2026-07-18 11:05:26
● 2016-12-18 10:57:30
● 2026-07-18 11:05:26
●NSdns2.hichina.com2016-12-18 → 2026-07-18 · 3 obs
○ 2016-08-19 05:34:02
● 2016-12-18 10:57:30
● 2026-07-18 11:05:26
● 2016-12-18 10:57:30
● 2026-07-18 11:05:26
○NSns.email.com.cn2015-05-08 → 2016-08-19 · 4 obs
● 2015-05-08 05:31:30
● 2016-08-19 05:34:02
○ 2016-12-18 10:57:30
○ 2026-07-18 11:05:26
● 2016-08-19 05:34:02
○ 2016-12-18 10:57:30
○ 2026-07-18 11:05:26
○NSns2.email.com.cn2015-05-08 → 2016-08-19 · 4 obs
● 2015-05-08 05:31:30
● 2016-08-19 05:34:02
○ 2016-12-18 10:57:30
○ 2026-07-18 11:05:26
● 2016-08-19 05:34:02
○ 2016-12-18 10:57:30
○ 2026-07-18 11:05:26
○A223.202.15.1792015-10-12 → 2016-08-19 · 5 obs
○ 2015-05-08 05:31:30
● 2015-10-12 10:50:16
● 2016-08-19 05:34:02
○ 2016-12-18 10:57:30
○ 2026-07-18 11:05:26
● 2015-10-12 10:50:16
● 2016-08-19 05:34:02
○ 2016-12-18 10:57:30
○ 2026-07-18 11:05:26
○A23.27.192.1172015-05-08 → 2017-07-19 · 7 obs
● 2015-05-08 05:31:30
○ 2015-10-12 10:50:16
○ 2016-08-19 05:34:02
● 2016-12-18 10:57:30
● 2017-07-19 15:02:28
○ 2026-06-25 15:05:36
○ 2026-07-18 11:05:26
○ 2015-10-12 10:50:16
○ 2016-08-19 05:34:02
● 2016-12-18 10:57:30
● 2017-07-19 15:02:28
○ 2026-06-25 15:05:36
○ 2026-07-18 11:05:26
●CNAMEoverdue.aliyun.com2026-06-25 → 2026-07-18 · 2 obs
● 2026-06-25 15:05:36
● 2026-07-18 11:05:26
● 2026-07-18 11:05:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| alert.cn | dns1.hichina.com, dns2.hichina.com | - |
✅ Authoritative Response
Server:47.118.199.204
NS records: dns1.hichina.com, dns2.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for alert.cn (unsigned zone)
⏱️ Timing
Total: 4601ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns1.hichina.com, dns2.hichina.com |
| CNAME | 1 | overdue.aliyun.com |
| SOA | 1 | dns1.hichina.com hostmaster.hichina.com |
Analysis
IP Addresses
alert.cn has exactly one IP address — 170.33.12.185.
dounao.com, lugu.com, topoac.com plus two other host names have IP numbers in common with alert.cn.