ctsbj.cn - robtex.com
ctsbj.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 140.188.138.194🇺🇸 PEGTECHINC140.188.128.0/19 PEG TECH INC | ||||||
| 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 | ||||||
| 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=1778102655 | ||||||
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 2035-04-08 #59 | ||||||
Same first word
Similar names
DNS History
9 records (3 active, 6 former)
○NSns1.72dns.com2015-05-22 → 2015-10-19 · 4 obs
● 2015-05-22 21:36:22
● 2015-10-19 17:11:42
○ 2026-07-03 16:13:42
○ 2026-07-14 22:48:30
● 2015-10-19 17:11:42
○ 2026-07-03 16:13:42
○ 2026-07-14 22:48:30
●NSns1.nowcndns.com2026-07-03 → 2026-07-14 · 3 obs
○ 2015-10-19 17:11:42
● 2026-07-03 16:13:42
● 2026-07-14 22:48:30
● 2026-07-03 16:13:42
● 2026-07-14 22:48:30
○NSns2.72dns.com2015-05-22 → 2015-10-19 · 4 obs
● 2015-05-22 21:36:22
● 2015-10-19 17:11:42
○ 2026-07-03 16:13:42
○ 2026-07-14 22:48:30
● 2015-10-19 17:11:42
○ 2026-07-03 16:13:42
○ 2026-07-14 22:48:30
●NSns2.nowcndns.com2026-07-03 → 2026-07-14 · 3 obs
○ 2015-10-19 17:11:42
● 2026-07-03 16:13:42
● 2026-07-14 22:48:30
● 2026-07-03 16:13:42
● 2026-07-14 22:48:30
○MXmail.ctsbj.cn2015-05-22 → 2015-10-19 · 4 obs
● 2015-05-22 21:36:22
● 2015-10-19 17:11:42
○ 2026-07-03 16:13:42
○ 2026-07-14 22:48:30
● 2015-10-19 17:11:42
○ 2026-07-03 16:13:42
○ 2026-07-14 22:48:30
○A103.24.92.1532015-05-22 → 2015-10-19 · 4 obs
● 2015-05-22 21:36:22
● 2015-10-19 17:11:42
○ 2026-07-03 16:13:42
○ 2026-07-14 22:48:30
● 2015-10-19 17:11:42
○ 2026-07-03 16:13:42
○ 2026-07-14 22:48:30
●A140.188.138.1942026-07-10 → 2026-07-14 · 3 obs
○ 2026-07-03 16:13:42
● 2026-07-10 10:40:56
● 2026-07-14 22:48:30
● 2026-07-10 10:40:56
● 2026-07-14 22:48:30
○A6718:5c99::2015-10-19 → 2015-10-19 · 4 obs
○ 2015-05-22 21:36:22
● 2015-10-19 17:11:42
○ 2026-07-03 16:13:42
○ 2026-07-14 22:48:30
● 2015-10-19 17:11:42
○ 2026-07-03 16:13:42
○ 2026-07-14 22:48:30
○A6718:5c99:0:2910::2015-05-22 → 2015-05-22 · 3 obs
● 2015-05-22 21:36:22
○ 2015-10-19 17:11:42
○ 2026-07-14 22:48:30
○ 2015-10-19 17:11:42
○ 2026-07-14 22:48:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| ctsbj.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 ctsbj.cn (unsigned zone)
⏱️ Timing
Total: 6830ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 140.188.138.194 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
ctsbj.cn resolves to one IP address: 140.188.138.194.
Name Servers
ctsbj.cn has two authoritative name servers — ns1.nowcndns.com and ns2.nowcndns.com.
ctsbj.cn uses the same name servers as several other domains — among them s4479.cn, gybaobao.cn, kw128.cn and two more.
ns1.nowcndns.com and ns2.nowcndns.com each have three IP addresses — ns1.nowcndns.com directs to 1.193.216.204, 218.98.111.129 and 218.98.111.138; ns2.nowcndns.com directs to 61.158.128.11, 183.253.57.202 and 211.99.99.38.