coolbook.com - robtex.com
coolbook.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.207.166.56🇭🇰 UFO-AS-AP103.207.166.0/24 JIN CHENGBAO TECHNOLOGY CO.,LIMITED B/5,Gaylord Commercial Building,114-120 Lockhart Road,HK | ||||||
| NS | buy.midian.cn ⚠️ Not in zone NS records | ||||||
| A | 103.207.166.56🇭🇰 UFO-AS-AP103.207.166.0/24 JIN CHENGBAO TECHNOLOGY CO.,LIMITED B/5,Gaylord Commercial Building,114-120 Lockhart Road,HK | ||||||
| NS | sell.midian.cn ⚠️ Not in zone NS records | ||||||
| A | 103.207.166.56🇭🇰 UFO-AS-AP103.207.166.0/24 JIN CHENGBAO TECHNOLOGY CO.,LIMITED B/5,Gaylord Commercial Building,114-120 Lockhart Road,HK | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1778679296 | ||||||
Subdomains
mail.coolbook.com |
Same first word
coolbook.top |
coolbook.it |
coolbook.com |
coolbook.se |
coolbook.de |
coolbook.net |
coolbook.ru |
coolbook.me |
coolbook.cc |
coolbook.org |
Similar names
DNS History
6 records (3 active, 3 former)
●NSbuy.midian.cn2026-04-19 → 2026-05-13 · 3 obs
● 2026-04-19 05:42:32
● 2026-05-13 13:51:42
○NSns1.hosting.co.kr2015-05-30 → 2017-07-03 · 4 obs
● 2017-07-03 06:52:02
○ 2026-04-19 05:42:32
○ 2026-05-13 13:51:42
○NSns2.hosting.co.kr2015-05-30 → 2017-07-03 · 4 obs
● 2017-07-03 06:52:02
○ 2026-04-19 05:42:32
○ 2026-05-13 13:51:42
●NSsell.midian.cn2026-04-19 → 2026-05-13 · 3 obs
● 2026-04-19 05:42:32
● 2026-05-13 13:51:42
●A103.207.166.562026-04-19 → 2026-05-13 · 3 obs
● 2026-04-19 05:42:32
● 2026-05-13 13:51:42
○A211.234.63.2322015-05-30 → 2017-07-03 · 4 obs
● 2017-07-03 06:52:02
○ 2026-04-19 05:42:32
○ 2026-05-13 13:51:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, g.gtld-servers.net, c.gtld-servers.net, e.gtld-servers.net... | - |
| coolbook.com | sell.midian.cn, buy.midian.cn | - |
✅ Authoritative Response
Server:103.207.166.56
NS records: sell.midian.cn, buy.midian.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coolbook.com (unsigned zone)
⏱️ Timing
Total: 3274ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.207.166.56 |
Analysis
Hierarchy
The parent of mail.coolbook.com is coolbook.com.
IP Addresses
coolbook.com points to an IP address: 103.207.166.56.
other host names include xiaojian.net, feiyizhi.com, cloudfarm.com, 63-203-215-185.daneng.com and superddns.com; they share IP numbers with coolbook.com.
Name Servers
Two name servers buy.midian.cn and sell.midian.cn handle the delegation for coolbook.com.
coolbook.com shares the same name server setup as other domains, for instance kuogang.com, eset.cn, no1china.com, cameia.com and aachat.com.
Host names with a single IP
buy.midian.cn points to 103.207.166.56
sell.midian.cn points to 103.207.166.56
Host names that point to 103.207.166.56: buy.midian.cn and sell.midian.cn