k-four.jp - robtex.com
k-four.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=1784173502 | ||||||
MX for
k-four.jp |
Same first word
Similar names
DNS History
11 records (7 active, 4 former)
○NSmaster.dns.ne.jp2015-07-23 → 2017-05-27 · 4 obs
● 2017-05-27 06:20:38
○ 2026-05-30 21:54:24
○ 2026-07-16 04:01:20
○NSns1.dns.ne.jp2015-07-23 → 2017-05-27 · 4 obs
● 2017-05-27 06:20:38
○ 2026-05-30 21:54:24
○ 2026-07-16 04:01:20
●NSns1.xserver.jp2026-05-30 → 2026-07-16 · 3 obs
● 2026-05-30 21:54:24
● 2026-07-16 04:01:20
○NSns2.dns.ne.jp2015-07-23 → 2017-05-27 · 4 obs
● 2017-05-27 06:20:38
○ 2026-05-30 21:54:24
○ 2026-07-16 04:01:20
●NSns2.xserver.jp2026-05-30 → 2026-07-16 · 3 obs
● 2026-05-30 21:54:24
● 2026-07-16 04:01:20
●NSns3.xserver.jp2026-05-30 → 2026-07-16 · 3 obs
● 2026-05-30 21:54:24
● 2026-07-16 04:01:20
●NSns4.xserver.jp2026-05-30 → 2026-07-16 · 3 obs
● 2026-05-30 21:54:24
● 2026-07-16 04:01:20
●NSns5.xserver.jp2026-05-30 → 2026-07-16 · 3 obs
● 2026-05-30 21:54:24
● 2026-07-16 04:01:20
●MXk-four.jp2015-07-23 → 2026-07-16 · 2 obs
● 2026-07-16 04:01:20
●A162.43.120.1552026-05-30 → 2026-07-16 · 3 obs
● 2026-05-30 21:54:24
● 2026-07-16 04:01:20
○A59.106.19.192015-07-23 → 2017-05-27 · 4 obs
● 2017-05-27 06:20:38
○ 2026-05-30 21:54:24
○ 2026-07-16 04:01:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| k-four.jp | ns4.xserver.jp, ns5.xserver.jp, ns1.xserver.jp, ns2.xserver.jp... | 11 records |
✅ Authoritative Response
Server:157.112.182.218
NS records: ns4.xserver.jp, ns5.xserver.jp, ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for k-four.jp (unsigned zone)
⏱️ Timing
Total: 948ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.43.120.155 |
| NS | 5 | ns3.xserver.jp, ns2.xserver.jp... |
| MX | 1 | k-four.jp (pri: 0) |
| TXT | 1 | v=spf1 +a:sv14154.xserver.jp +a:k-four.j |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
📌 Glue Records Collected
Total: 11
Out-of-bailiwick: 11 (ns1.xserver.jp, ns1.xserver.jp, ns1.xserver.jp...)
Analysis
Mail Server Role
k-four.jp serves as a mail server for k-four.jp.
IP Addresses
k-four.jp has exactly one IP address — 162.43.120.155.
www.trainer.agency, ymge.com, lion-do.jp plus two other host names have IP numbers in common with k-four.jp.
Name Servers
Five name servers handle delegation for k-four.jp: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
At least some of k-four.jp's name servers are shared with other domains, for example flat-kids.com, zenryoku-usagi.com, tochicli.com and two more.
These name servers tend to be deployed in combination with the name servers ns4.xserver.jp and ns5.xserver.jp.
Host names carrying three IP numbers:
ns1.xserver.jp maps to three IP addresses: 202.226.36.164, 202.226.36.170 and 202.226.36.246.
ns4.xserver.jp maps to three IP addresses: 183.90.224.226, 183.90.224.230 and 202.226.39.247.
ns5.xserver.jp maps to three IP addresses: 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Host names resolving to a single IP address:
ns2.xserver.jp resolves to the IP address 35.72.43.26.
ns3.xserver.jp resolves to the IP address 202.226.36.247.
Mail Servers
k-four.jp uses exactly one mail server, which is k-four.jp.
k-four.jp resolves to 162.43.120.155 and no other IP number.