kobetsuun.jp - robtex.com
kobetsuun.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.154.227.230🇯🇵 OCN210.154.0.0/16 (AS4713) CIDR BLOCK 5 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN | ||||||
| PTR | kobetsuun.jp | ||||||
| NS | mwns1.customer.ne.jp ⭐ | ||||||
| A | 210.150.23.210🇯🇵 InfoSphere210.150.0.0/16 INFOSPHERE | ||||||
| NS | mwns2.customer.ne.jp | ||||||
| A | 202.17.152.183🇯🇵 InfoSphere202.17.128.0/19 INFOSPHERE | ||||||
| MX | mwbgw1.ocn.ad.jp ⭐ | ||||||
| A | 210.145.253.233🇯🇵 OCN210.145.0.0/16 (AS4713) CIDR BLOCK 18 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN | ||||||
| MX | mwbgw2.ocn.ad.jp ⭐ | ||||||
| A | 210.145.253.234🇯🇵 OCN210.145.0.0/16 (AS4713) CIDR BLOCK 18 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN | ||||||
| TXT | v=spf1 a include:_spf.bizmw.com ~all | ||||||
| SOA | mwns1.customer.ne.jphost-plan-ac@ntt.com serial=1613591611 | ||||||
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=1784511902 | ||||||
PTR for
Same first word
kobetsuun.jp |
Similar names
DNS History
13 records (5 active, 8 former)
●NSmwns1.customer.ne.jp2026-04-04 → 2026-07-20 · 3 obs
● 2026-04-04 23:36:12
● 2026-07-20 02:34:02
●NSmwns2.customer.ne.jp2026-04-04 → 2026-07-20 · 3 obs
● 2026-04-04 23:36:12
● 2026-07-20 02:34:02
○NSns-204.dns.jp-e1.cloudn-service.com2015-12-17 → 2017-06-06 · 5 obs
● 2015-12-17 18:50:32
● 2017-06-06 17:59:32
○ 2026-04-04 23:36:12
○ 2026-07-20 02:34:02
○NSns-205.dns.jp-w1.cloudn-service.com2015-12-17 → 2017-06-06 · 5 obs
● 2015-12-17 18:50:32
● 2017-06-06 17:59:32
○ 2026-04-04 23:36:12
○ 2026-07-20 02:34:02
○NSns-206.dns.us-e1.cloudn-service.com2015-12-17 → 2017-06-06 · 5 obs
● 2015-12-17 18:50:32
● 2017-06-06 17:59:32
○ 2026-04-04 23:36:12
○ 2026-07-20 02:34:02
○NSns1.secure.net2015-05-15 → 2015-10-12 · 4 obs
● 2015-10-12 03:57:18
○ 2015-12-17 18:50:32
○ 2026-07-20 02:34:02
○NSns2.secure.net2015-05-15 → 2015-10-12 · 4 obs
● 2015-10-12 03:57:18
○ 2015-12-17 18:50:32
○ 2026-07-20 02:34:02
○MXin.sjc.mx.trendmicro.com2015-05-15 → 2015-10-12 · 4 obs
● 2015-10-12 03:57:18
○ 2015-12-17 18:50:32
○ 2026-07-20 02:34:02
●MXmwbgw1.ocn.ad.jp2015-12-17 → 2026-07-20 · 3 obs
● 2015-12-17 18:50:32
● 2026-07-20 02:34:02
●MXmwbgw2.ocn.ad.jp2015-12-17 → 2026-07-20 · 3 obs
● 2015-12-17 18:50:32
● 2026-07-20 02:34:02
○A125.206.172.1412015-12-17 → 2017-06-06 · 5 obs
● 2015-12-17 18:50:32
● 2017-06-06 17:59:32
○ 2026-04-04 23:36:12
○ 2026-07-20 02:34:02
●A210.154.227.2302026-04-04 → 2026-07-20 · 3 obs
● 2026-04-04 23:36:12
● 2026-07-20 02:34:02
○A27.50.119.1982015-05-15 → 2015-10-12 · 4 obs
● 2015-10-12 03:57:18
○ 2015-12-17 18:50:32
○ 2026-07-20 02:34:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| kobetsuun.jp | mwns1.customer.ne.jp, mwns2.customer.ne.jp | - |
✅ Authoritative Response
Server:202.17.152.183
NS records: mwns1.customer.ne.jp, mwns2.customer.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kobetsuun.jp (unsigned zone)
⏱️ Timing
Total: 1617ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.154.227.230 |
| NS | 2 | mwns1.customer.ne.jp, mwns2.customer.ne.jp |
| MX | 2 | mwbgw2.ocn.ad.jp (pri: 10), mwbgw1.ocn.ad.jp (pri: 10) |
| TXT | 1 | v=spf1 a include:_spf.bizmw.com ~all |
| SOA | 1 | mwns1.customer.ne.jp host-plan-ac.ntt.co |
Analysis
IP Addresses
kobetsuun.jp directs to one IP number, which is 210.154.227.230.
Name Servers
DNS delegation for kobetsuun.jp points to two name servers: mwns1.customer.ne.jp and mwns2.customer.ne.jp.
kobetsuun.jp has the same name server delegation as a number of other domains, such as 151.17.122.in-addr.arpa, kanda.gr.jp, iwavesystem.co.jp and two more.
kobetsuun.jp has partial name server overlap with other domains, including zapre.net.
Each of mwns1.customer.ne.jp and mwns2.customer.ne.jp has one IP address: mwns1.customer.ne.jp uses 210.150.23.210 and mwns2.customer.ne.jp uses 202.17.152.183.
Mail Servers
The MX records for kobetsuun.jp point to two mail servers: mwbgw1.ocn.ad.jp and mwbgw2.ocn.ad.jp.
kobetsuun.jp has the same mail server arrangement as a number of other domains, for example kdengyo.co.jp, ochato.or.jp, naio.jp and two more.
kobetsuun.jp shares at least some of its mail servers with other domains — for example shizushokukyou.or.jp, sunatmark.com, nrusaitama.jp and two more.
Each of mwbgw1.ocn.ad.jp and mwbgw2.ocn.ad.jp has one IP address: mwbgw1.ocn.ad.jp uses 210.145.253.233 and mwbgw2.ocn.ad.jp uses 210.145.253.234.