knowsql.cn - robtex.com
knowsql.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.6.82.237🇺🇸 AS39882338.6.64.0/18 PEG TECH INC PT-82 | ||||||
| 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 Proxy-registered route object | ||||||
| SOA | ns1.nowcndns.comadmin@nowcndns.com serial=1774265442 | ||||||
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=2034710733 | ||||||
Same first word
DNS History
8 records (3 active, 5 former)
○NSjm1.dns.com2020-01-31 → 2020-01-31 · 4 obs
● 2020-01-31 16:26:58
○ 2026-04-10 17:13:56
○ 2026-04-25 11:54:34
○NSjm2.dns.com2020-01-31 → 2020-01-31 · 4 obs
● 2020-01-31 16:26:58
○ 2026-04-10 17:13:56
○ 2026-04-25 11:54:34
○NSns1.bddns.cn2015-03-09 → 2015-03-09 · 3 obs
○ 2015-10-18 23:35:02
○ 2026-04-25 11:54:34
●NSns1.nowcndns.com2026-04-10 → 2026-04-25 · 3 obs
● 2026-04-10 17:13:56
● 2026-04-25 11:54:34
●NSns2.nowcndns.com2026-04-10 → 2026-04-25 · 3 obs
● 2026-04-10 17:13:56
● 2026-04-25 11:54:34
○A14.128.50.2332020-01-31 → 2020-01-31 · 4 obs
● 2020-01-31 16:26:58
○ 2026-04-10 17:13:56
○ 2026-04-25 11:54:34
●A38.6.82.2372026-04-10 → 2026-04-25 · 3 obs
● 2026-04-10 17:13:56
● 2026-04-25 11:54:34
○A54.183.180.822015-12-25 → 2015-12-25 · 3 obs
○ 2016-04-04 20:46:26
○ 2026-04-25 11:54:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | b.dns.cn, a.dns.cn, d.dns.cn, e.dns.cn... | - |
| knowsql.cn | ns1.nowcndns.com, ns2.nowcndns.com | - |
✅ Authoritative Response
Server:218.98.111.129
NS records: ns1.nowcndns.com, ns2.nowcndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowsql.cn (unsigned zone)
⏱️ Timing
Total: 3812ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.6.82.237 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
knowsql.cn points to a single IP: 38.6.82.237.
Other host names, for instance duanma.com.cn, terc.cn, www.duanma.com.cn, lihongyy.cn and moky.net.cn share IP numbers with knowsql.cn.
Name Servers
Two name servers ns1.nowcndns.com and ns2.nowcndns.com handle delegation for knowsql.cn.
knowsql.cn uses the same name server setup as other domains, for example 0513888.cn, efqu.cn, xiaodemon.cn, ulqr.cn and lygms.cn.
Host names with three IP numbers:
ns1.nowcndns.com points to 1.193.216.204, 218.98.111.129 and 218.98.111.138.
ns2.nowcndns.com points to 61.158.128.11, 183.253.57.202 and 211.99.99.38.