kmath.cn - robtex.com
kmath.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 106.12.200.9🇨🇳 Baidu106.12.192.0/20 AS38365 | ||||||
| NS | ns1.nowcndns.com ⭐ | ||||||
| A | 1.193.216.204🇨🇳 CHINANET-Henan-Luoyang-IDC1.193.216.0/24 Chinatelecom HeNan Province Network | ||||||
| A | 218.98.111.129🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| A | 218.98.111.138🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| NS | ns2.nowcndns.com | ||||||
| A | 61.158.128.11🇨🇳 CHINA169-Backbone61.158.128.0/17 CNC Group CHINA169 Henan Province Network | ||||||
| PTR | 11.128.158.61.ha.cnc | ||||||
| A | 183.253.57.202🇨🇳 CHINAMOBILE-CN183.253.0.0/16 CMI (Customer Route) | ||||||
| A | 211.99.99.38🇨🇳 DONGGUAN-1211.99.99.0/24 | ||||||
| SOA | ns1.nowcndns.comadmin@nowcndns.com serial=1780303511 | ||||||
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 2035-10-17 #24 | ||||||
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
●NSns1.nowcndns.com2026-06-30 → 2026-07-28 · 2 obs
● 2026-06-30 01:41:18
● 2026-07-28 14:19:20
● 2026-07-28 14:19:20
●NSns2.nowcndns.com2026-06-30 → 2026-07-28 · 2 obs
● 2026-06-30 01:41:18
● 2026-07-28 14:19:20
● 2026-07-28 14:19:20
●A106.12.200.92026-06-30 → 2026-07-28 · 2 obs
● 2026-06-30 01:41:18
● 2026-07-28 14:19:20
● 2026-07-28 14:19:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| kmath.cn | ns1.nowcndns.com, ns2.nowcndns.com | - |
✅ Authoritative Response
Server:1.193.216.204
NS records: ns1.nowcndns.com, ns2.nowcndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kmath.cn (unsigned zone)
⏱️ Timing
Total: 4833ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 106.12.200.9 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
kmath.cn directs to one IP number, which is 106.12.200.9.
Name Servers
kmath.cn is served by two delegated name servers, ns1.nowcndns.com and ns2.nowcndns.com.
kmath.cn has the same name server delegation as a number of other domains, such as tc-th.cn, 52boli.cn, jiajienet.cn and two more.
The hosts ns1.nowcndns.com and ns2.nowcndns.com both resolve to three IP numbers: ns1.nowcndns.com to 1.193.216.204, 218.98.111.129 and 218.98.111.138, and ns2.nowcndns.com to 61.158.128.11, 183.253.57.202 and 211.99.99.38.