ctrbiz.cn - robtex.com
ctrbiz.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 45.114.170.172🇭🇰 POWERLINE-HK45.114.168.0/22 POWER LINE (HK) CO., LIMITED UNIT 04/7F BRIGHT WAY TOWER NO.35 | ||||||
| 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=1774104546 | ||||||
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=2034591567 | ||||||
Same first word
ctrbiz.cn |
Similar names
DNS History
14 records (3 active, 11 former)
○NSf1g1ns1.dnspod.net2015-06-18 → 2015-11-04 · 4 obs
● 2015-11-04 14:18:54
○ 2020-03-21 08:08:02
○ 2026-03-27 03:11:10
○NSf1g1ns2.dnspod.net2015-06-18 → 2015-11-04 · 4 obs
● 2015-11-04 14:18:54
○ 2020-03-21 08:08:02
○ 2026-03-27 03:11:10
○NSjm1.dns.com2020-03-21 → 2020-03-21 · 3 obs
● 2020-03-21 08:08:02
○ 2026-03-27 03:11:10
○NSjm2.dns.com2020-03-21 → 2020-03-21 · 3 obs
● 2020-03-21 08:08:02
○ 2026-03-27 03:11:10
●NSns1.nowcndns.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 03:11:10
●NSns2.nowcndns.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 03:11:10
○MXmail.skrimple.com2016-01-21 → 2017-04-04 · 4 obs
● 2017-04-04 22:57:44
○ 2020-03-21 08:08:02
○ 2026-03-27 03:11:10
○A103.51.144.812017-04-04 → 2017-04-04 · 4 obs
● 2017-04-04 22:57:44
○ 2020-03-21 08:08:02
○ 2026-03-27 03:11:10
○A123.254.111.1902015-06-18 → 2015-11-04 · 4 obs
● 2015-11-04 14:18:54
○ 2016-01-21 07:52:12
○ 2026-03-27 03:11:10
○A154.197.224.1872026-03-27 → 2026-03-27 · 1 obs
○A161.123.165.792020-03-21 → 2020-03-21 · 3 obs
● 2020-03-21 08:08:02
○ 2026-03-27 03:11:10
●A45.114.170.1722026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 03:11:10
○A65.19.157.2342016-04-13 → 2016-04-13 · 4 obs
● 2016-04-13 15:26:04
○ 2017-04-04 22:57:44
○ 2026-03-27 03:11:10
○A65.19.157.2352016-01-21 → 2016-01-21 · 4 obs
● 2016-01-21 07:52:12
○ 2016-04-13 15:26:04
○ 2026-03-27 03:11:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | b.dns.cn, c.dns.cn, e.dns.cn, a.dns.cn... | - |
| ctrbiz.cn | ns1.nowcndns.com, ns2.nowcndns.com | - |
✅ Authoritative Response
Server:218.98.111.138
NS records: ns1.nowcndns.com, ns2.nowcndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctrbiz.cn (unsigned zone)
⏱️ Timing
Total: 1316ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 45.114.170.172 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
ctrbiz.cn points to a single IP number: 45.114.170.172.
Other host names, for instance dkm-armaturen.cn, seesoft.cn, 365p2p.cn, jzfgj.cn and enviroseal.cn share IP numbers with ctrbiz.cn.
Name Servers
ctrbiz.cn is delegated to two name servers: ns1.nowcndns.com and ns2.nowcndns.com.
ctrbiz.cn uses the same name server setup as other domains, for instance e25u.cn, 17668pay.cn, fwdr.cn, hshuayi.com.cn and 108cgw.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.