coreforce.jp - robtex.com
coreforce.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.254.238.5🇯🇵 XSERVER-AS202.254.236.0/22 XSERVER Inc. | ||||||
| PTR | sv4.xbiz.ne.jp | ||||||
| NS | ns1.xbiz.ne.jp ⭐ | ||||||
| A | 157.112.182.247🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc. | ||||||
| PTR | ns1.xbiz.ne.jp | ||||||
| NS | ns2.xbiz.ne.jp | ||||||
| A | 35.76.79.244🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix | ||||||
| PTR | ns2.xbiz.ne.jp | ||||||
| NS | ns3.xbiz.ne.jp | ||||||
| A | 157.112.191.237🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc. | ||||||
| PTR | ns3.xbiz.ne.jp | ||||||
| MX | coreforce.jp ⭐ | ||||||
| A | 202.254.238.5🇯🇵 XSERVER-AS202.254.236.0/22 XSERVER Inc. | ||||||
| PTR | sv4.xbiz.ne.jp | ||||||
| TXT | v=spf1 +ip4:202.254.238.5 +a:sv4.xbiz.ne.jp +a:coreforce.jp +mx include:_spf.... | ||||||
| TXT | google-site-verification=GmL8cR93qS2TeCHGmBuISa6cWQJGp1Y9nrKMIyRd3Hc | ||||||
| SOA | ns1.xbiz.ne.jproot@xbiz.ne.jp serial=0 | ||||||
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=1776252602 | ||||||
MX for
coreforce.jp |
Subdomains
www.coreforce.jp |
Same first word
coreforce.jp |
coreforce.co.kr |
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.xbiz.ne.jp2026-02-26 → 2026-04-15 · 2 obs
● 2026-04-15 11:59:12
●NSns2.xbiz.ne.jp2026-02-26 → 2026-04-15 · 2 obs
● 2026-04-15 11:59:12
●NSns3.xbiz.ne.jp2026-02-26 → 2026-04-15 · 2 obs
● 2026-04-15 11:59:12
●MXcoreforce.jp2026-02-26 → 2026-04-15 · 2 obs
● 2026-04-15 11:59:12
●A202.254.238.52026-02-26 → 2026-04-15 · 2 obs
● 2026-04-15 11:59:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| coreforce.jp | ns2.xbiz.ne.jp, ns1.xbiz.ne.jp, ns3.xbiz.ne.jp | 3 records |
✅ Authoritative Response
Server:35.76.79.244
NS records: ns2.xbiz.ne.jp, ns1.xbiz.ne.jp, ns3.xbiz.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coreforce.jp (unsigned zone)
⏱️ Timing
Total: 884ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.254.238.5 |
| NS | 3 | ns3.xbiz.ne.jp, ns1.xbiz.ne.jp... |
| MX | 1 | coreforce.jp (pri: 0) |
| TXT | 2 | v=spf1 +ip4:202.254.238.5 +a:sv4.xbiz.ne, google-site-verification=GmL8cR93qS2TeCH |
| SOA | 1 | ns1.xbiz.ne.jp root.xbiz.ne.jp |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns3.xbiz.ne.jp, ns2.xbiz.ne.jp, ns1.xbiz.ne.jp)
Analysis
Hierarchy
coreforce.jp is a parent of www.coreforce.jp.
Mail Server Role
coreforce.jp serves as the mail server for coreforce.jp.
IP Addresses
coreforce.jp points to a single IP address: 202.254.238.5.
Other host names such as aiki-tcs.co.jp, umetsuyosei.jp, www.monlapin-kabeya.com, igaku-kaiseikai.jp and da2675bc9d99.fari.jp share IP numbers with coreforce.jp.
Name Servers
coreforce.jp is delegated to three name servers: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.
At least part of the name servers for coreforce.jp are shared with other domains, for instance lem-headspa.com, e-kawai.jp, hachicli.com, iseya-photo.com and is-assoc.co.jp.
Host names with a single IP:
ns1.xbiz.ne.jp points to: 157.112.182.247
ns2.xbiz.ne.jp points to: 35.76.79.244
ns3.xbiz.ne.jp points to: 157.112.191.237
Mail Servers
Mail for coreforce.jp is handled by a single mail server, coreforce.jp.
Host coreforce.jp points to IP 202.254.238.5.