rtc-kochi.jp - robtex.com
rtc-kochi.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 61.112.21.131🇯🇵 OCN61.112.0.0/15 (AS4713) CIDR BLOCK NTT Communications Corporation OTEMACHI PLACE WEST TOWER 2-3-1 Otemachi, Chiyoda-ku Tokyo 100-8019 JAPAN | ||||||
| PTR | rtc-kochi.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=1613815666 | ||||||
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=1786229103 | ||||||
PTR for
Subdomains
www.rtc-kochi.jp |
Same first word
rtc-kochi.jp |
DNS History
13 records (5 active, 8 former)
●NSmwns1.customer.ne.jp2026-08-08 → 2026-08-08 · 3 obs
● 2026-08-08 23:55:38
● 2026-08-08 23:55:40
●NSmwns2.customer.ne.jp2026-08-08 → 2026-08-08 · 3 obs
● 2026-08-08 23:55:38
● 2026-08-08 23:55:40
○NSns-219.dns.jp-e1.cloudn-service.com2015-12-16 → 2020-04-13 · 5 obs
● 2015-12-16 04:48:12
● 2020-04-13 10:08:30
○ 2026-08-08 23:55:38
○ 2026-08-08 23:55:40
○NSns-220.dns.jp-w1.cloudn-service.com2015-12-16 → 2020-04-13 · 5 obs
● 2015-12-16 04:48:12
● 2020-04-13 10:08:30
○ 2026-08-08 23:55:38
○ 2026-08-08 23:55:40
○NSns-221.dns.us-e1.cloudn-service.com2015-12-16 → 2020-04-13 · 5 obs
● 2015-12-16 04:48:12
● 2020-04-13 10:08:30
○ 2026-08-08 23:55:38
○ 2026-08-08 23:55:40
○NSns1.secure.net2015-05-04 → 2015-10-12 · 4 obs
● 2015-10-12 10:51:54
○ 2015-12-16 04:48:12
○ 2026-08-08 23:55:40
○NSns2.secure.net2015-05-04 → 2015-10-12 · 4 obs
● 2015-10-12 10:51:54
○ 2015-12-16 04:48:12
○ 2026-08-08 23:55:40
○MXin.sjc.mx.trendmicro.com2015-05-04 → 2015-10-12 · 4 obs
● 2015-10-12 10:51:54
○ 2015-12-16 04:48:12
○ 2026-08-08 23:55:40
●MXmwbgw1.ocn.ad.jp2015-12-16 → 2026-08-08 · 3 obs
● 2015-12-16 04:48:12
● 2026-08-08 23:55:40
●MXmwbgw2.ocn.ad.jp2015-12-16 → 2026-08-08 · 3 obs
● 2015-12-16 04:48:12
● 2026-08-08 23:55:40
○A101.110.169.42015-05-04 → 2015-10-12 · 4 obs
● 2015-10-12 10:51:54
○ 2015-12-16 04:48:12
○ 2026-08-08 23:55:40
○A60.43.218.1082015-12-16 → 2020-04-13 · 5 obs
● 2015-12-16 04:48:12
● 2020-04-13 10:08:30
○ 2026-08-08 23:55:38
○ 2026-08-08 23:55:40
●A61.112.21.1312026-08-08 → 2026-08-08 · 3 obs
● 2026-08-08 23:55:38
● 2026-08-08 23:55:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | c.dns.jp, g.dns.jp, b.dns.jp, f.dns.jp... | - |
| rtc-kochi.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 rtc-kochi.jp (unsigned zone)
⏱️ Timing
Total: 2158ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 61.112.21.131 |
| NS | 2 | mwns2.customer.ne.jp, mwns1.customer.ne.jp |
| MX | 2 | mwbgw1.ocn.ad.jp (pri: 10), mwbgw2.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
rtc-kochi.jp is the parent zone for www.rtc-kochi.jp.
IP Addresses
rtc-kochi.jp resolves to just one IP address, 61.112.21.131.
Name Servers
The NS records for rtc-kochi.jp delegate to mwns1.customer.ne.jp and mwns2.customer.ne.jp.
rtc-kochi.jp shares its NS records with other domains, for example jec.gr.jp, okinawatanken.ecnet.jp, kamome-drg.co.jp and two others.
rtc-kochi.jp and other domains like horiedenki.jp share at least a portion of their name servers.
mwns1.customer.ne.jp resolves to 210.150.23.210. mwns2.customer.ne.jp resolves to 202.17.152.183. Both host names point to a single IP number.
Mail Servers
rtc-kochi.jp is served by two mail servers, mwbgw1.ocn.ad.jp and mwbgw2.ocn.ad.jp.
Among the domains sharing a mail server setup with rtc-kochi.jp are advance-web.co.jp, tokyokoekituhou.jp, rk-co.jp and two others.
The MX records for rtc-kochi.jp are at least partially shared with other domains, such as bake-de-arles.com, nets-co.jp, hiw.co.jp and okuyamakanzai.jp.
mwbgw1.ocn.ad.jp resolves to 210.145.253.233. mwbgw2.ocn.ad.jp resolves to 210.145.253.234. Both host names point to a single IP number.