certainn.cn - robtex.com
certainn.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 149.120.169.21🇨🇦 AS398478149.120.160.0/19 PEG TECH INC | ||||||
| NS | ns1.nowcndns.com ⭐ | ||||||
| A | 1.193.216.204🇨🇳 CHINANET-Henan-Luoyang-IDC1.193.216.0/24 Chinatelecom HeNan Province Network | ||||||
| PTR | ip-1-193-216-204.defastlink.net | ||||||
| A | 218.98.111.129🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| PTR | ip-218-98-111-129.defastlink.net | ||||||
| A | 218.98.111.138🇩🇪 HKCICL-AS-AP218.98.111.0/24 HONG KONG COMMUNICATIONS INTERNATIONAL CO.,LIMITED | ||||||
| PTR | ip-218-98-111-138.defastlink.net | ||||||
| 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) | ||||||
| PTR | ip-183-253-57-202.defastlink.net | ||||||
| A | 211.99.99.38🇨🇳 DONGGUAN-1211.99.99.0/24 Proxy-registered route object | ||||||
| PTR | ip-211-99-99-38.defastlink.net | ||||||
| SOA | ns1.nowcndns.comadmin@nowcndns.com serial=1772971602 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| 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=2034546407 | ||||||
Same first word
certainn.cn |
Similar names
DNS History
11 records (3 active, 8 former)
○NSf1g1ns1.dnspod.net2015-06-15 → 2015-11-01 · 4 obs
● 2015-11-01 08:19:46
○ 2026-03-03 11:22:24
○ 2026-03-23 20:54:36
○NSf1g1ns2.dnspod.net2015-06-15 → 2015-11-01 · 4 obs
● 2015-11-01 08:19:46
○ 2026-03-03 11:22:24
○ 2026-03-23 20:54:36
●NSns1.nowcndns.com2026-03-03 → 2026-03-23 · 3 obs
● 2026-03-03 11:22:24
● 2026-03-23 20:54:36
●NSns2.nowcndns.com2026-03-03 → 2026-03-23 · 3 obs
● 2026-03-03 11:22:24
● 2026-03-23 20:54:36
○MXmail.skrimple.com2016-01-19 → 2017-11-15 · 4 obs
● 2017-11-15 01:30:04
○ 2026-03-03 11:22:24
○ 2026-03-23 20:54:36
○A103.51.144.812016-12-01 → 2016-12-01 · 4 obs
● 2016-12-01 22:09:26
○ 2017-11-15 01:30:04
○ 2026-03-23 20:54:36
○A123.254.111.1902015-06-15 → 2015-11-01 · 4 obs
● 2015-11-01 08:19:46
○ 2016-01-19 13:40:54
○ 2026-03-23 20:54:36
●A149.120.169.212026-03-21 → 2026-03-23 · 3 obs
● 2026-03-21 12:04:08
● 2026-03-23 20:54:36
○A38.177.136.1152026-03-03 → 2026-03-03 · 4 obs
● 2026-03-03 11:22:24
○ 2026-03-21 12:04:08
○ 2026-03-23 20:54:36
○A50.117.120.2512017-11-15 → 2017-11-15 · 4 obs
● 2017-11-15 01:30:04
○ 2026-03-03 11:22:24
○ 2026-03-23 20:54:36
○A65.19.157.2352016-01-19 → 2016-04-08 · 5 obs
● 2016-01-19 13:40:54
● 2016-04-08 08:42:28
○ 2016-12-01 22:09:26
○ 2026-03-23 20:54:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| certainn.cn | ns1.nowcndns.com, ns2.nowcndns.com | - |
✅ Authoritative Response
Server:61.158.128.11
NS records: ns1.nowcndns.com, ns2.nowcndns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for certainn.cn (unsigned zone)
⏱️ Timing
Total: 3202ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 149.120.169.21 |
| NS | 2 | ns1.nowcndns.com, ns2.nowcndns.com |
| SOA | 1 | ns1.nowcndns.com admin.nowcndns.com |
Analysis
IP Addresses
certainn.cn maps to IP address 149.120.169.21.
Other host names, for instance vgyljha.cn, szolan.com.cn, rxdsz.cn, ikqh.cn and 7bay.cn share IP numbers with certainn.cn.
Name Servers
Two name servers ns1.nowcndns.com and ns2.nowcndns.com are delegated to certainn.cn.
certainn.cn uses the same name server configuration as other domains, such as rljgb.cn, h7009.cn, yzfpw.cn, cvpi.cn and alivr10.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.