seibudenko.jp - robtex.com
seibudenko.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.154.205.143🇯🇵 OCN210.154.0.0/16 (AS4713) CIDR BLOCK 5 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN | ||||||
| PTR | seibudenko.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=1613573569 | ||||||
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=1774809903 | ||||||
PTR for
Subdomains
www.seibudenko.jp |
Same first word
seibudenko.jp |
seibudenko.com |
DNS History
13 records (5 active, 8 former)
●NSmwns1.customer.ne.jp2026-03-29 → 2026-03-29 · 2 obs
● 2026-03-29 20:03:26
●NSmwns2.customer.ne.jp2026-03-29 → 2026-03-29 · 2 obs
● 2026-03-29 20:03:26
○NSns-219.dns.jp-e1.cloudn-service.com2016-01-01 → 2017-07-08 · 4 obs
● 2016-01-01 04:20:32
● 2017-07-08 10:43:36
○ 2026-03-29 20:03:26
○NSns-220.dns.jp-w1.cloudn-service.com2016-01-01 → 2017-07-08 · 4 obs
● 2016-01-01 04:20:32
● 2017-07-08 10:43:36
○ 2026-03-29 20:03:26
○NSns-221.dns.us-e1.cloudn-service.com2016-01-01 → 2017-07-08 · 4 obs
● 2016-01-01 04:20:32
● 2017-07-08 10:43:36
○ 2026-03-29 20:03:26
○NSns1.secure.net2015-06-22 → 2015-10-26 · 4 obs
● 2015-10-26 00:49:54
○ 2016-01-01 04:20:32
○ 2026-03-29 20:03:26
○NSns2.secure.net2015-06-22 → 2015-10-26 · 4 obs
● 2015-10-26 00:49:54
○ 2016-01-01 04:20:32
○ 2026-03-29 20:03:26
○MXin.sjc.mx.trendmicro.com2015-06-22 → 2015-10-26 · 4 obs
● 2015-10-26 00:49:54
○ 2016-01-01 04:20:32
○ 2026-03-29 20:03:26
●MXmwbgw1.ocn.ad.jp2016-01-01 → 2026-03-29 · 3 obs
● 2016-01-01 04:20:32
● 2026-03-29 20:03:26
●MXmwbgw2.ocn.ad.jp2016-01-01 → 2026-03-29 · 3 obs
● 2016-01-01 04:20:32
● 2026-03-29 20:03:26
○A153.254.23.552015-06-22 → 2015-10-26 · 4 obs
● 2015-10-26 00:49:54
○ 2016-01-01 04:20:32
○ 2026-03-29 20:03:26
●A210.154.205.1432026-03-29 → 2026-03-29 · 2 obs
● 2026-03-29 20:03:26
○A210.190.148.1322016-01-01 → 2017-07-08 · 4 obs
● 2016-01-01 04:20:32
● 2017-07-08 10:43:36
○ 2026-03-29 20:03:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| seibudenko.jp | mwns2.customer.ne.jp, mwns1.customer.ne.jp | - |
✅ Authoritative Response
Server:202.17.152.183
NS records: mwns2.customer.ne.jp, mwns1.customer.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for seibudenko.jp (unsigned zone)
⏱️ Timing
Total: 1488ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.154.205.143 |
| NS | 2 | mwns2.customer.ne.jp, mwns1.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
Hierarchy
www.seibudenko.jp is a child of seibudenko.jp.
IP Addresses
seibudenko.jp resolves to one IP number: 210.154.205.143.
Name Servers
seibudenko.jp's delegation uses two name servers: mwns1.customer.ne.jp and mwns2.customer.ne.jp.
seibudenko.jp uses the same name server setup as other domains, such as lapajuria.jp, tt-s.co.jp, imi-inc.co.jp, k-scc.co.jp and network-support.co.jp.
Host names with a single IP address: mwns1.customer.ne.jp points to 210.150.23.210; mwns2.customer.ne.jp points to 202.17.152.183.
Mail Servers
seibudenko.jp is served by two mail servers mwbgw1.ocn.ad.jp and mwbgw2.ocn.ad.jp.
seibudenko.jp shares the same mail server setup as other domains, for instance kumasou.or.jp, shimizu-iw.co.jp, takezawa-service.ecnet.jp, fukestudio.com and yamasho.org.
Host names with a single IP address: mwbgw1.ocn.ad.jp points to 210.145.253.233; mwbgw2.ocn.ad.jp points to 210.145.253.234.