jcohk.com - robtex.com
jcohk.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 203.194.203.79🇭🇰 IS-AP203.194.200.0/22 iAdvantage Limited MEGATOP Mega-iAdvantage 399 Chai Wan Road | ||||||
| NS | dns1.dmbiz.net ⭐ | ||||||
| A | 97.74.89.65🇺🇸 GODADDY97.74.88.0/21 | ||||||
| NS | dns2.dmbiz.net | ||||||
| A | 97.74.89.65🇺🇸 GODADDY97.74.88.0/21 | ||||||
| MX | wowvps.dmbiz.net ⭐ | ||||||
| A | 184.168.122.162🇸🇬 GODADDY184.168.96.0/19 | ||||||
| TXT | v=DMARC1; p=quarantine; adkim=r; aspf=r; rua=mailto:dmarc_rua@onsecureserver.... | ||||||
| TXT | v=spf1 +mx +a +ip4:184.168.122.162 +include:secureserver.net +include:eig.spf... | ||||||
| SOA | dns1.dmbiz.netadmin@dmbiz.net serial=20 | ||||||
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=1783751517 | ||||||
Same first word
jcohk.com |
Similar names
DNS History
6 records (4 active, 2 former)
○MXmail12.dmbiz.net2016-04-16 → 2017-09-26 · 5 obs
● 2016-04-16 11:07:30
● 2017-09-26 00:17:12
○ 2026-06-27 11:08:26
○ 2026-07-11 06:46:30
○MXmail3.dmbiz.net2015-08-19 → 2016-01-22 · 4 obs
● 2016-01-22 06:09:22
○ 2016-04-16 11:07:30
○ 2026-07-11 06:46:30
●MXwowvps.dmbiz.net2026-06-27 → 2026-07-11 · 3 obs
● 2026-06-27 11:08:26
● 2026-07-11 06:46:30
●A203.194.203.792015-08-19 → 2026-07-11 · 2 obs
● 2026-07-11 06:46:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| jcohk.com | dns1.dmbiz.net, dns2.dmbiz.net | - |
✅ Authoritative Response
Server:97.74.89.65
NS records: dns1.dmbiz.net, dns2.dmbiz.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jcohk.com (unsigned zone)
⏱️ Timing
Total: 683ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 203.194.203.79 |
| NS | 2 | dns2.dmbiz.net, dns1.dmbiz.net |
| MX | 1 | wowvps.dmbiz.net (pri: 10) |
| TXT | 2 | v=spf1 +mx +a +ip4:184.168.122.162 +incl, v=DMARC1; p=quarantine; adkim=r; aspf=r; |
| SOA | 1 | dns1.dmbiz.net admin.dmbiz.net |
Analysis
IP Addresses
jcohk.com resolves to one IP address: 203.194.203.79.
cheerpapers.com.hk, apoly.com.hk, aarosa.com and two other host names share IP numbers with jcohk.com.
Name Servers
The NS records for jcohk.com delegate to dns1.dmbiz.net and dns2.dmbiz.net.
jcohk.com uses the same name servers as several other domains — among them apoly.com.hk, activeschool.hk, taicheng.com.hk and two more.
jcohk.com and other domains like dimpurifyer.com share at least a portion of their name servers.
Each of dns1.dmbiz.net and dns2.dmbiz.net points to exactly one IP address: 97.74.89.65.
dns1.dmbiz.net and dns2.dmbiz.net each have 97.74.89.65 IP addresses.
Mail Servers
Mail for jcohk.com is handled by a single mail server, wowvps.dmbiz.net.
jcohk.com uses an identical mail server configuration to several other domains — among them leepremium.com.hk, andreakum.com, lavisstudio.com and two more.
wowvps.dmbiz.net resolves to 184.168.122.162 and no other IP number.