a10-dev.jp - dns.ninja
a10-dev.jp
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=1783166403 | ||||||
MX for
a10-dev.jp |
Subdomains
Same first word
DNS History
10 records (7 active, 3 former)
○NSns.a10-dev.jp2015-06-27 → 2020-03-28 · 4 obs
● 2020-03-28 21:25:46
○ 2026-03-26 11:23:44
○ 2026-07-04 12:25:28
●NSns1.xserver.jp2026-03-26 → 2026-07-04 · 3 obs
● 2026-03-26 11:23:44
● 2026-07-04 12:25:28
●NSns2.xserver.jp2026-03-26 → 2026-07-04 · 3 obs
● 2026-03-26 11:23:44
● 2026-07-04 12:25:28
●NSns3.xserver.jp2026-03-26 → 2026-07-04 · 3 obs
● 2026-03-26 11:23:44
● 2026-07-04 12:25:28
●NSns4.xserver.jp2026-03-26 → 2026-07-04 · 3 obs
● 2026-03-26 11:23:44
● 2026-07-04 12:25:28
●NSns5.xserver.jp2026-03-26 → 2026-07-04 · 3 obs
● 2026-03-26 11:23:44
● 2026-07-04 12:25:28
●MXa10-dev.jp2026-03-26 → 2026-07-04 · 3 obs
● 2026-03-26 11:23:44
● 2026-07-04 12:25:28
○MXmail.a10-dev.jp2015-06-27 → 2020-03-28 · 4 obs
● 2020-03-28 21:25:46
○ 2026-03-26 11:23:44
○ 2026-07-04 12:25:28
●A162.43.101.1272026-03-26 → 2026-07-04 · 3 obs
● 2026-03-26 11:23:44
● 2026-07-04 12:25:28
○A203.196.17.2172015-06-27 → 2020-03-28 · 4 obs
● 2020-03-28 21:25:46
○ 2026-03-26 11:23:44
○ 2026-07-04 12:25:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | g.dns.jp, h.dns.jp, e.dns.jp, b.dns.jp... | - |
| a10-dev.jp | ns3.xserver.jp, ns1.xserver.jp, ns5.xserver.jp, ns2.xserver.jp... | 11 records |
✅ Authoritative Response
Server:202.226.36.247
NS records: ns3.xserver.jp, ns1.xserver.jp, ns5.xserver.jp, ns2.xserver.jp, ns4.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for a10-dev.jp (unsigned zone)
⏱️ Timing
Total: 757ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.43.101.127 |
| NS | 5 | ns3.xserver.jp, ns2.xserver.jp... |
| MX | 1 | a10-dev.jp (pri: 10) |
| TXT | 1 | v=spf1 +a:sv14926.xserver.jp +a:a10-dev. |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
📌 Glue Records Collected
Total: 11
Out-of-bailiwick: 11 (ns5.xserver.jp, ns5.xserver.jp, ns5.xserver.jp...)
Analysis
Hierarchy
a10-dev.jp is the parent domain of ns.a10-dev.jp and mail.a10-dev.jp.
Mail Server Role
a10-dev.jp acts as its own mail server.
IP Addresses
a10-dev.jp points to a single IP number: 162.43.101.127.
Additional host names — tdu-kakehashi.com, kaonyoga.com, akasakaroman.com and two others — share IP numbers with a10-dev.jp.
Name Servers
Delegation for a10-dev.jp is to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
There is at least partial name server overlap between a10-dev.jp and other domains — nonai.jp, onelys.net, kabukarin.net and two more among them.
These name servers frequently co-occur with the name servers ns4.xserver.jp and ns5.xserver.jp.
Host names with three IP numbers:
ns1.xserver.jp resolves to three addresses: 202.226.36.164, 202.226.36.170 and 202.226.36.246.
ns4.xserver.jp resolves to three addresses: 183.90.224.226, 183.90.224.230 and 202.226.39.247.
ns5.xserver.jp resolves to three addresses: 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Host names pointing to a single IP address:
ns2.xserver.jp points to the IP address 35.72.43.26.
ns3.xserver.jp points to the IP address 202.226.36.247.
Mail Servers
a10-dev.jp has a single mail server: a10-dev.jp itself.
There is one IP number for a10-dev.jp: 162.43.101.127.