codezero.co.jp - robtex.com
codezero.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.49.141.34🇯🇵 BPS103.49.140.0/22 Inc. X-keiro : noc@bps-net.jp | ||||||
| NS | ns1.zent.net ⭐ | ||||||
| A | 103.49.141.34🇯🇵 BPS103.49.140.0/22 Inc. X-keiro : noc@bps-net.jp | ||||||
| NS | ns2.zent.net | ||||||
| A | 210.253.210.211🇯🇵 iTSCOM210.253.208.0/20 .net its communications Inc. 541-1 Ichigao-chou, Aoba-ku Yokohama-shi, Kanagawa 225-0024 Japan | ||||||
| NS | ns3.zent.net | ||||||
| A | 103.49.141.41🇯🇵 BPS103.49.140.0/22 Inc. X-keiro : noc@bps-net.jp | ||||||
| NS | ns4.zent.net | ||||||
| A | 210.253.210.215🇯🇵 iTSCOM210.253.208.0/20 .net its communications Inc. 541-1 Ichigao-chou, Aoba-ku Yokohama-shi, Kanagawa 225-0024 Japan | ||||||
| MX | codezero.co.jp ⭐ | ||||||
| A | 103.49.141.34🇯🇵 BPS103.49.140.0/22 Inc. X-keiro : noc@bps-net.jp | ||||||
| TXT | v=spf1 ip4:103.49.141.34 +a +mx ~all | ||||||
| SOA | ns1.zent.netdomain@zent.net 2026-03-25 #1 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
MX for
codezero.co.jp |
Same first word
Similar names
zerocode.io |
zerocode.solutions |
zerocode.info |
zerocode.com |
zerocode.net |
zerocode.org |
zerocode.ru |
zerocode.su |
dozecore.com |
zerocode.it |
zerocode.de |
zerocode.online |
zerocode.com.au |
zerocode.co |
DNS History
6 records (6 active, 0 former)
●MXcodezero.co.jp2019-03-30 → 2026-07-11 · 2 obs
● 2026-07-11 17:05:40
●A103.49.141.342019-03-30 → 2026-07-11 · 2 obs
● 2026-07-11 17:05:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | b.dns.jp, a.dns.jp, d.dns.jp, f.dns.jp... | - |
| codezero.co.jp | ns1.zent.net, ns2.zent.net, ns3.zent.net, ns4.zent.net | - |
✅ Authoritative Response
Server:210.253.210.211
NS records: ns1.zent.net, ns2.zent.net, ns3.zent.net, ns4.zent.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for codezero.co.jp (unsigned zone)
⏱️ Timing
Total: 3219ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.49.141.34 |
| NS | 4 | ns1.zent.net, ns3.zent.net... |
| MX | 1 | codezero.co.jp (pri: 0) |
| TXT | 1 | v=spf1 ip4:103.49.141.34 +a +mx ~all |
| SOA | 1 | ns1.zent.net domain.zent.net |
Analysis
Mail Server Role
codezero.co.jp serves as a mail server for codezero.co.jp.
IP Addresses
codezero.co.jp has exactly one IP address — 103.49.141.34.
maricar.jp, ssl2.zent.ne.jp, idpic.net plus two other host names have IP numbers in common with codezero.co.jp.
Name Servers
Four name servers handle the delegation for codezero.co.jp: ns1.zent.net, ns2.zent.net, ns3.zent.net and ns4.zent.net.
There is at least partial name server overlap between codezero.co.jp and other domains — ryu.ms, demo-server.jp, authemotion.jp and two more among them.
These name servers tend to appear in combination with the name servers ns1.zent.ne.jp, ns2.zent.ne.jp, ns3.zent.ne.jp and ns4.zent.ne.jp.
Four host names, each with one IP address: ns1.zent.net has 103.49.141.34, ns2.zent.net has 210.253.210.211, ns3.zent.net has 103.49.141.41 and ns4.zent.net has 210.253.210.215.
Mail Servers
codezero.co.jp uses exactly one mail server, which is codezero.co.jp.
codezero.co.jp has exactly one IP number: 103.49.141.34.