number21.jp - robtex.com
number21.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.239.46.194🇯🇵 IDC210.239.32.0/19 Frontier Inc. | ||||||
| PTR | sv.plays.jp | ||||||
| NS | ns1.number21.jp ⭐ | ||||||
| A | 210.239.46.194🇯🇵 IDC210.239.32.0/19 Frontier Inc. | ||||||
| PTR | sv.plays.jp | ||||||
| NS | ns.at-link.ad.jp | ||||||
| A | 210.239.46.2🇯🇵 IDC210.239.32.0/19 Frontier Inc. | ||||||
| PTR | ns.at-link.ad.jp | ||||||
| MX | ns.number21.jp ⭐ | ||||||
| A | 210.239.46.194🇯🇵 IDC210.239.32.0/19 Frontier Inc. | ||||||
| PTR | sv.plays.jp | ||||||
| SOA | ns1.number21.jppostmaster@number21.jp 2019-03-26 #1 | ||||||
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=1774662303 | ||||||
Subdomains
Same first word
DNS History
7 records (4 active, 3 former)
●NSns.at-link.ad.jp2009-01-14 → 2026-03-28 · 2 obs
● 2026-03-28 02:07:04
●NSns1.number21.jp2015-07-05 → 2026-03-28 · 3 obs
● 2015-07-05 14:55:12
● 2026-03-28 02:07:04
○NSsv.number21.jp2009-01-14 → 2009-01-14 · 3 obs
○ 2015-07-05 14:55:12
○ 2026-03-28 02:07:04
●MXns.number21.jp2015-07-05 → 2026-03-28 · 3 obs
● 2015-07-05 14:55:12
● 2026-03-28 02:07:04
○MXsv.number21.jp2009-01-14 → 2009-01-14 · 3 obs
○ 2015-07-05 14:55:12
○ 2026-03-28 02:07:04
●A210.239.46.1942015-07-05 → 2026-03-28 · 3 obs
● 2015-07-05 14:55:12
● 2026-03-28 02:07:04
○A211.10.15.1382009-01-14 → 2009-01-14 · 3 obs
○ 2015-07-05 14:55:12
○ 2026-03-28 02:07:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | b.dns.jp, e.dns.jp, d.dns.jp, c.dns.jp... | - |
| number21.jp | ns1.number21.jp, ns.at-link.ad.jp | 2 records |
✅ Authoritative Response
Server:210.239.46.194
NS records: ns1.number21.jp, ns.at-link.ad.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for number21.jp (unsigned zone)
⏱️ Timing
Total: 787ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.239.46.194 |
| NS | 2 | ns1.number21.jp, ns.at-link.ad.jp |
| MX | 1 | ns.number21.jp (pri: 10) |
| SOA | 1 | ns1.number21.jp postmaster.number21.jp |
📌 Glue Records Collected
Total: 2
In-bailiwick: 1 (ns1.number21.jp)
Out-of-bailiwick: 1 (ns.at-link.ad.jp)
Analysis
Hierarchy
number21.jp is a parent of sv.number21.jp, ns.number21.jp and ns1.number21.jp.
IP Addresses
number21.jp points to a single IP number: 210.239.46.194.
other host names for instance style-21.jp, sv.plays.jp, sv.style-21.jp, sv.number21.jp and plays.jp share IP numbers with number21.jp.
Name Servers
number21.jp is delegated to two name servers: ns1.number21.jp and ns.at-link.ad.jp.
number21.jp at least partially shares name servers with other domains, for instance weblite.jp, bonheur.gr.jp, shz.jp, iheya-moonlight.jp and at-link.ad.jp.
These name servers are commonly used alongside the name servers ns.iamdn.co.jp, ns01.ddstd.co.jp, sv.oack.com, ns.weblite.jp and ns.justware.co.jp.
Host names with one IP number:
The host ns1.number21.jp points to 210.239.46.194 and the host ns.at-link.ad.jp points to 210.239.46.2.
Mail Servers
number21.jp is handled by a single mail server, ns.number21.jp.
number21.jp shares the same mail server setup as other domains, for example ns.number21.jp.
Host name ns.number21.jp points to IP address 210.239.46.194.