coreweb.jp - dns.ninja
coreweb.jp
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns.core.co.jp ⭐ | ||||||
| A | 113.40.88.146🇯🇵 UCOM113.40.0.0/14 ARTERIA Networks Corporation(UCOM) | ||||||
| NS | uns02.usen.ad.jp | ||||||
| A | 61.122.116.165🇯🇵 UCOM61.122.112.0/20 ARTERIA Networks Corporation(UCOM) | ||||||
| PTR | uns02.usen.ad.jp | ||||||
| SOA | dns.core.co.jppostmaster@core.co.jp 2016-01-05 #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=1785887102 | ||||||
Same first word
coreweb.co.kr |
coreweb.co |
coreweb.nl |
coreweb.be |
coreweb.net |
coreweb.us |
coreweb.it |
coreweb.com.au |
coreweb.org |
coreweb.jp |
coreweb.eu |
coreweb.com.br |
coreweb.de |
Similar names
DNS History
3 records (2 active, 1 former)
●NSdns.core.co.jp2015-08-17 → 2026-08-05 · 2 obs
● 2026-08-05 00:32:30
●NSuns02.usen.ad.jp2015-08-17 → 2026-08-05 · 2 obs
● 2026-08-05 00:32:30
○A27.96.41.1272015-08-17 → 2015-12-24 · 4 obs
● 2015-12-24 19:32:10
○ 2016-02-03 03:17:38
○ 2026-08-05 00:32:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| coreweb.jp | dns.core.co.jp, uns02.usen.ad.jp | 1 record |
✅ Authoritative Response
Server:61.122.116.165
NS records: dns.core.co.jp, uns02.usen.ad.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coreweb.jp (unsigned zone)
⏱️ Timing
Total: 1432ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | uns02.usen.ad.jp, dns.core.co.jp |
| SOA | 1 | dns.core.co.jp postmaster.core.co.jp |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (dns.core.co.jp)
Analysis
Name Servers
Two name servers handle the delegation for coreweb.jp: uns02.usen.ad.jp and dns.core.co.jp.
coreweb.jp and other domains — dsys.co.jp, lambda.co.jp and resona.co.jp among them — share the same NS delegation.
There is at least partial name server overlap between coreweb.jp and other domains — kinokuniya.jp, morph.co.jp, jss21.co.jp and two more among them.
These name servers regularly appear alongside uns01.usen.ad.jp, dns-a.iij.ad.jp, ns01.hmv.co.jp and 7 other name servers in NS record sets.
uns02.usen.ad.jp → 61.122.116.165 and dns.core.co.jp → 113.40.88.146: one IP number per host name.