doopen.cn - robtex.com
doopen.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 38.246.252.253🇺🇸 NetLab38.246.252.0/24 NTLB | ||||||
| NS | ns1.julydns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns1.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | ns1.julydns.commaster@jmdns.com serial=1766110248 | ||||||
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=2035192202 | ||||||
Subdomains
host-a.doopen.cn |
Same first word
Similar names
Previous names
dooniu.cn |
doonj.cn |
doonle.cn |
doonly.cn |
doont.cn |
doony.cn |
dooo.cn |
dooob.cn |
doool.cn |
doooob.cn |
doooor.cn |
dooorigin.cn |
dooow.cn |
dooox.cn |
doop.cn |
doopa.cn |
doopal.cn |
doopda.cn |
Next names
doopo.cn |
doopod.cn |
doopri.cn |
dooqhd.cn |
door-closer.cn |
door-expo.cn |
door1.cn |
doora.cn |
dooray.cn |
doorbio.cn |
doorblog.cn |
doorcare.cn |
doorcast.cn |
doorcloser.cn |
doorcn.cn |
doorcom.cn |
doorcontacts.cn |
doorcore.cn |
DNS History
12 records (5 active, 7 former)
○NSf1g1ns1.dnspod.net2015-07-17 → 2017-06-21 · 4 obs
● 2017-06-21 23:41:30
○ 2026-07-01 12:33:44
○ 2026-08-17 22:53:14
○NSf1g1ns2.dnspod.net2015-07-17 → 2017-06-21 · 4 obs
● 2017-06-21 23:41:30
○ 2026-07-01 12:33:44
○ 2026-08-17 22:53:14
●NSns1.judns.com2026-07-01 → 2026-08-17 · 3 obs
● 2026-07-01 12:33:44
● 2026-08-17 22:53:14
●NSns1.julydns.com2026-07-01 → 2026-08-17 · 3 obs
● 2026-07-01 12:33:44
● 2026-08-17 22:53:14
●NSns2.judns.com2026-07-01 → 2026-08-17 · 3 obs
● 2026-07-01 12:33:44
● 2026-08-17 22:53:14
●NSns2.julydns.com2026-07-01 → 2026-08-17 · 3 obs
● 2026-07-01 12:33:44
● 2026-08-17 22:53:14
○MXmxbiz1.qq.com2015-07-17 → 2016-07-23 · 4 obs
● 2016-07-23 23:19:12
○ 2026-07-01 12:33:44
○ 2026-08-17 22:53:14
○MXmxbiz2.qq.com2015-07-17 → 2016-07-23 · 4 obs
● 2016-07-23 23:19:12
○ 2026-07-01 12:33:44
○ 2026-08-17 22:53:14
○A121.42.104.82015-07-17 → 2016-07-23 · 4 obs
● 2016-07-23 23:19:12
○ 2017-06-21 23:41:30
○ 2026-08-17 22:53:14
●A38.246.252.2532026-07-01 → 2026-08-17 · 3 obs
● 2026-07-01 12:33:44
● 2026-08-17 22:53:14
○CNAMEhost-a.doopen.cn2015-07-17 → 2017-06-21 · 4 obs
● 2017-06-21 23:41:30
○ 2026-07-01 12:33:44
○ 2026-08-17 22:53:14
○CNAMEqxu1192100057.my3w.com2015-07-17 → 2017-06-21 · 4 obs
● 2017-06-21 23:41:30
○ 2026-07-01 12:33:44
○ 2026-08-17 22:53:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, c.dns.cn, a.dns.cn, d.dns.cn... | - |
| doopen.cn | ns1.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: 3529ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 38.246.252.253 |
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
| SOA | 1 | ns1.julydns.com master.jmdns.com |
Analysis
Hierarchy
doopen.cn is a parent domain of host-a.doopen.cn.
IP Addresses
doopen.cn directs to one IP number, which is 38.246.252.253.
Among the host names that share IP numbers with doopen.cn are www.iabci.cn, pddd.pytwk.cn, yxxhb.ycdhl.com and two others.
Name Servers
The domain doopen.cn is delegated to these four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
doopen.cn shares at least some of its name servers with other domains, including itrips.cn, longbaigroup.com, tjjsyb.com and two others.
These name servers are frequently seen alongside the name servers ns1.onclouddns.com, ns2.onclouddns.com, jm1.dns.com and jm2.dns.com.
Each of ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com has a single IP address — ns1.judns.com and ns2.judns.com direct to 162.159.27.251, and ns1.julydns.com and ns2.julydns.com direct to 162.159.48.223.
ns1.judns.com and ns2.judns.com are host names that each point to 162.159.27.251 IP addresses.
ns1.julydns.com and ns2.julydns.com are host names that each point to 162.159.48.223 IP addresses.