sirb.cn - robtex.com
sirb.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 107.151.85.221🇺🇸 POWERLINE-HK107.151.64.0/18 PowerLine Internal Use | ||||||
| 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=1753249697 | ||||||
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=2034666820 | ||||||
Same first word
Similar names
DNS History
10 records (3 active, 7 former)
○NSf1g1ns1.dnspod.net2015-11-07 → 2016-03-03 · 4 obs
● 2016-03-03 20:38:18
○ 2016-07-07 00:51:28
○ 2026-04-13 16:56:14
○NSf1g1ns2.dnspod.net2015-11-07 → 2016-03-03 · 4 obs
● 2016-03-03 20:38:18
○ 2016-07-07 00:51:28
○ 2026-04-13 16:56:14
●NSns1.nowcndns.com2026-03-26 → 2026-04-13 · 3 obs
● 2026-03-26 14:53:52
● 2026-04-13 16:56:14
●NSns2.nowcndns.com2026-03-26 → 2026-04-13 · 3 obs
● 2026-03-26 14:53:52
● 2026-04-13 16:56:14
○NSns3.dnsdun.com2016-07-07 → 2017-04-01 · 5 obs
● 2016-07-07 00:51:28
● 2017-04-01 07:20:32
○ 2026-03-26 14:53:52
○ 2026-04-13 16:56:14
○NSns4.dnsdun.net2016-07-07 → 2017-04-01 · 5 obs
● 2016-07-07 00:51:28
● 2017-04-01 07:20:32
○ 2026-03-26 14:53:52
○ 2026-04-13 16:56:14
○MXmail.q666666.com2015-11-07 → 2015-11-07 · 3 obs
○ 2016-02-02 19:27:00
○ 2026-04-13 16:56:14
○A103.59.45.302016-02-02 → 2016-03-03 · 4 obs
● 2016-03-03 20:38:18
○ 2016-07-07 00:51:28
○ 2026-04-13 16:56:14
●A107.151.85.2212026-03-26 → 2026-04-13 · 3 obs
● 2026-03-26 14:53:52
● 2026-04-13 16:56:14
○A23.80.70.1012016-07-07 → 2016-07-07 · 4 obs
● 2016-07-07 00:51:28
○ 2016-12-22 08:32:54
○ 2026-04-13 16:56:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| sirb.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 sirb.cn (unsigned zone)
⏱️ Timing
Total: 1199ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 107.151.85.221 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
sirb.cn points to an IP address: 107.151.85.221.
other host names include 0731ct.com, cuxp.cn, www.wyzy.net, xhyey.net.cn and wyzy.net; they share IP numbers with sirb.cn.
Name Servers
Two name servers ns1.nowcndns.com and ns2.nowcndns.com handle the delegation for sirb.cn.
sirb.cn shares the same name server setup as other domains, for instance guncel.cn, tdzjkj.cn, njbke.cn, buld.cn and lydtl.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.