kokoiro.jp - robtex.com
kokoiro.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 85.131.210.38🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc. | ||||||
| PTR | sv857.xbiz.ne.jp | ||||||
| NS | ns1.xbiz.ne.jp ⭐ | ||||||
| A | 157.112.182.247🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc. | ||||||
| PTR | ns1.xbiz.ne.jp | ||||||
| NS | ns2.xbiz.ne.jp | ||||||
| A | 35.76.79.244🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix | ||||||
| PTR | ns2.xbiz.ne.jp | ||||||
| NS | ns3.xbiz.ne.jp | ||||||
| A | 157.112.191.237🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc. | ||||||
| PTR | ns3.xbiz.ne.jp | ||||||
| MX | kokoiro.jp ⭐ | ||||||
| A | 85.131.210.38🇯🇵 XSERVER-AS85.131.192.0/18 XSERVER Inc. | ||||||
| PTR | sv857.xbiz.ne.jp | ||||||
| TXT | v=spf1 +a:sv857.xbiz.ne.jp +a:kokoiro.jp +mx include:spf.sender.xserver.jp ~all | ||||||
| SOA | ns1.xbiz.ne.jproot@xbiz.ne.jp serial=0 | ||||||
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1774637103 | ||||||
MX for
kokoiro.jp |
Same first word
kokoiro.jp |
Similar names
DNS History
9 records (5 active, 4 former)
○NSnns1.nissen.co.jp2015-07-05 → 2016-12-02 · 3 obs
● 2016-12-02 15:04:24
○ 2026-03-27 20:21:06
○NSnns2.nissen.co.jp2015-07-05 → 2016-12-02 · 3 obs
● 2016-12-02 15:04:24
○ 2026-03-27 20:21:06
○NSnns3.nissen.co.jp2016-03-09 → 2016-12-02 · 4 obs
● 2016-03-09 15:29:56
● 2016-12-02 15:04:24
○ 2026-03-27 20:21:06
●NSns1.xbiz.ne.jp2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 20:21:06
●NSns2.xbiz.ne.jp2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 20:21:06
●NSns3.xbiz.ne.jp2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 20:21:06
●MXkokoiro.jp2026-03-27 → 2026-03-27 · 1 obs
○A202.24.196.2172015-07-05 → 2016-12-02 · 3 obs
● 2016-12-02 15:04:24
○ 2026-03-27 20:21:06
●A85.131.210.382026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 20:21:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | f.dns.jp, e.dns.jp, h.dns.jp, g.dns.jp... | - |
| kokoiro.jp | ns3.xbiz.ne.jp, ns1.xbiz.ne.jp, ns2.xbiz.ne.jp | 3 records |
✅ Authoritative Response
Server:35.76.79.244
NS records: ns3.xbiz.ne.jp, ns1.xbiz.ne.jp, ns2.xbiz.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kokoiro.jp (unsigned zone)
⏱️ Timing
Total: 708ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 85.131.210.38 |
| NS | 3 | ns3.xbiz.ne.jp, ns2.xbiz.ne.jp... |
| MX | 1 | kokoiro.jp (pri: 0) |
| TXT | 1 | v=spf1 +a:sv857.xbiz.ne.jp +a:kokoiro.jp |
| SOA | 1 | ns1.xbiz.ne.jp root.xbiz.ne.jp |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp)
Analysis
Mail Server Role
kokoiro.jp is the mail server for kokoiro.jp.
IP Addresses
kokoiro.jp resolves to a single IP: 85.131.210.38.
Other host names, for instance etude.jp, we-choice.com, mail.rt-kensetsu.co.jp, rt-kensetsu.co.jp and mail.yutec.jp share IP numbers with kokoiro.jp.
Name Servers
kokoiro.jp delegates to three name servers: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.
kokoiro.jp shares some name servers with other domains, for example gomi-kaisyuu.com, mmasudasika.com, st-rose.jp, zeno.or.jp and ku-do.co.jp.
Host names with a single IP: ns1.xbiz.ne.jp points to 157.112.182.247; ns2.xbiz.ne.jp points to 35.76.79.244; ns3.xbiz.ne.jp points to 157.112.191.237.
Mail Servers
One mail server handles kokoiro.jp.
Host name kokoiro.jp points to IP 85.131.210.38.