ctrub.cn - dns.ninja

ctrub.cn

DNSSEC⚠️ Not signed
A113.207.111.204🇨🇳 CHINA169-Backbone113.204.0.0/14 CNC Group CHINA169 Chongqing Province Network
NSns1.julydns.com ⭐ ⚠️ Not in parent delegation
A162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns1.judns.com ⚠️ Not in zone NS records
A162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.judns.com ⚠️ Not in zone NS records
A162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns2.julydns.com ⚠️ Not in parent delegation
A162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
SOAns1.julydns.commaster@jmdns.com serial=1780399125

cn

DNSSEC⚠️ Not signed
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2035015416

Same first word

ctrub.cn

Similar names

ubctr.com
bcrtu.com
cutbr.cc
cutbr.com
tburc.com
curtb.net
bcurt.ac.cn
bruct.com
rbcut.com
rubtc.ru

DNS History

8 records (5 active, 3 former)

201820192020202120222023202420252026NSns1.judns.comns1.julydns.comns2.judns.comns2.julydns.comns5.dnsdun.netns6.dnsdun.comA113.207.111.204172.246.74.177
●NSns1.judns.com2026-07-08 → 2026-07-08 · 3 obs
○ 2017-06-15 15:04:06
● 2026-07-08 01:02:30
● 2026-07-08 01:02:32
●NSns1.julydns.com2026-07-08 → 2026-07-08 · 3 obs
○ 2017-06-15 15:04:06
● 2026-07-08 01:02:30
● 2026-07-08 01:02:32
●NSns2.judns.com2026-07-08 → 2026-07-08 · 3 obs
○ 2017-06-15 15:04:06
● 2026-07-08 01:02:30
● 2026-07-08 01:02:32
●NSns2.julydns.com2026-07-08 → 2026-07-08 · 3 obs
○ 2017-06-15 15:04:06
● 2026-07-08 01:02:30
● 2026-07-08 01:02:32
○NSns5.dnsdun.net2017-06-15 → 2017-06-15 · 3 obs
● 2017-06-15 15:04:06
○ 2026-07-08 01:02:30
○ 2026-07-08 01:02:32
○NSns6.dnsdun.com2017-06-15 → 2017-06-15 · 3 obs
● 2017-06-15 15:04:06
○ 2026-07-08 01:02:30
○ 2026-07-08 01:02:32
●A113.207.111.2042026-07-08 → 2026-07-08 · 3 obs
○ 2017-06-15 15:04:06
● 2026-07-08 01:02:30
● 2026-07-08 01:02:32
○A172.246.74.1772017-06-15 → 2017-06-15 · 3 obs
● 2017-06-15 15:04:06
○ 2026-07-08 01:02:30
○ 2026-07-08 01:02:32

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cne.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn...-
ctrub.cnns1.judns.com, ns2.judns.com-

✅ Authoritative Response

Server:162.159.27.251

NS records: ns1.judns.com, ns2.judns.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn

⏱️ Timing

Total: 4036ms | Queries: -

📄 Records

TypeCountSample Data
A1113.207.111.204
NS2ns1.julydns.com, ns2.julydns.com
SOA1ns1.julydns.com master.jmdns.com

Analysis

IP Addresses

ctrub.cn resolves to one IP address: 113.207.111.204.

emper.cn, entros.cn, ifert.cn and two other host names share IP numbers with ctrub.cn.

Name Servers

The authoritative name servers for ctrub.cn are ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.

There is at least partial name server overlap between ctrub.cn and other domains — hpmltour.com, wenchanxk.com, wnbnru.com and two more among them.

These name servers frequently co-occur with the name servers ns1.onclouddns.com and ns2.onclouddns.com.

Four host names each point to one IP address: ns1.judns.com and ns2.judns.com both point to 162.159.27.251, and ns1.julydns.com and ns2.julydns.com both point to 162.159.48.223.

ns1.judns.com and ns2.judns.com each have 162.159.27.251 IP addresses.

ns1.julydns.com and ns2.julydns.com each have 162.159.48.223 IP addresses.