a-root.jp - robtex.com
a-root.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 60.43.201.136🇯🇵 OCN60.32.0.0/12 (AS4713) CIDR BLOCK 70 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN | ||||||
| PTR | a-root.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 | a-root.jp ⭐ | ||||||
| A | 60.43.201.136🇯🇵 OCN60.32.0.0/12 (AS4713) CIDR BLOCK 70 NTT Communications Corporation 1-1-6 Uchisaiwai-cho, Chiyoda-ku Tokyo 100-8019 JAPAN | ||||||
| PTR | a-root.jp | ||||||
| TXT | v=spf1 a include:_spf.bizmw.com ~all | ||||||
| SOA | mwns1.customer.ne.jphost-plan-ac@ntt.com serial=1614174965 | ||||||
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=1774683003 | ||||||
PTR for
MX for
a-root.jp |
Subdomains
www.a-root.jp |
Same first word
a-root.jp |
Similar names
oto-ra.com |
arto-o.com |
o-taro.blogspot.de |
root-a.com |
taro-o.hatenablog.com |
oo-art.com |
root-a.net |
a-orto.com |
a-toor.com |
DNS History
13 records (4 active, 9 former)
○NSk2.a-root.jp2009-01-21 → 2009-01-21 · 3 obs
○ 2015-08-08 16:03:30
○ 2026-03-28 07:39:14
●NSmwns1.customer.ne.jp2026-03-28 → 2026-03-28 · 2 obs
● 2026-03-28 07:39:14
●NSmwns2.customer.ne.jp2026-03-28 → 2026-03-28 · 2 obs
● 2026-03-28 07:39:14
○NSns-204.dns.jp-e1.cloudn-service.com2015-11-19 → 2016-12-26 · 4 obs
● 2015-11-19 19:58:52
● 2016-12-26 03:52:04
○ 2026-03-28 07:39:14
○NSns-205.dns.jp-w1.cloudn-service.com2015-11-19 → 2016-12-26 · 4 obs
● 2015-11-19 19:58:52
● 2016-12-26 03:52:04
○ 2026-03-28 07:39:14
○NSns-206.dns.us-e1.cloudn-service.com2015-11-19 → 2016-12-26 · 4 obs
● 2015-11-19 19:58:52
● 2016-12-26 03:52:04
○ 2026-03-28 07:39:14
○NSns-tk061.ocn.ad.jp2009-01-21 → 2009-01-21 · 3 obs
○ 2015-08-08 16:03:30
○ 2026-03-28 07:39:14
○NSns1.secure.net2015-08-08 → 2015-10-29 · 5 obs
● 2015-08-08 16:03:30
● 2015-10-29 15:41:02
○ 2015-11-19 19:58:52
○ 2026-03-28 07:39:14
○NSns2.secure.net2015-08-08 → 2015-10-29 · 5 obs
● 2015-08-08 16:03:30
● 2015-10-29 15:41:02
○ 2015-11-19 19:58:52
○ 2026-03-28 07:39:14
●MXa-root.jp2015-08-08 → 2026-03-28 · 3 obs
● 2015-08-08 16:03:30
● 2026-03-28 07:39:14
○MXk2.a-root.jp2009-01-21 → 2009-01-21 · 3 obs
○ 2015-08-08 16:03:30
○ 2026-03-28 07:39:14
●A60.43.201.1362026-03-28 → 2026-03-28 · 2 obs
● 2026-03-28 07:39:14
○A61.112.2.1782015-08-08 → 2016-12-26 · 4 obs
● 2015-08-08 16:03:30
● 2016-12-26 03:52:04
○ 2026-03-28 07:39:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | f.dns.jp, h.dns.jp, a.dns.jp, d.dns.jp... | - |
| a-root.jp | mwns2.customer.ne.jp, mwns1.customer.ne.jp | - |
✅ Authoritative Response
Server:210.150.23.210
NS records: mwns2.customer.ne.jp, mwns1.customer.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for a-root.jp (unsigned zone)
⏱️ Timing
Total: 2762ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 60.43.201.136 |
| NS | 2 | mwns2.customer.ne.jp, mwns1.customer.ne.jp |
| MX | 1 | a-root.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
a-root.jp is parent of www.a-root.jp.
Mail Server Role
a-root.jp serves as a mail server for a-root.jp.
IP Addresses
a-root.jp points to a single IP: 60.43.201.136.
Name Servers
a-root.jp's delegation is to two name servers mwns1.customer.ne.jp and mwns2.customer.ne.jp.
a-root.jp shares the same name server configuration as other domains, such as sokukodo.co.jp, maruisuisan.co.jp, c-family.co.jp, thepack.jp and ogino-d.ecnet.jp.
Host names with a single IP:
mwns1.customer.ne.jp resolves to 210.150.23.210.
mwns2.customer.ne.jp resolves to 202.17.152.183.
Mail Servers
a-root.jp is handled by a single mail server.
a-root.jp points to IP number 60.43.201.136.