28ko.jp - robtex.com
28ko.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=1783873803 | ||||||
MX for
28ko.jp |
Same first word
Similar names
DNS History
11 records (7 active, 4 former)
●NSns1.xserver.jp2026-05-25 → 2026-07-12 · 3 obs
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
●NSns2.xserver.jp2026-05-25 → 2026-07-12 · 3 obs
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
●NSns3.xserver.jp2026-05-25 → 2026-07-12 · 3 obs
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
●NSns4.xserver.jp2026-05-25 → 2026-07-12 · 3 obs
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
●NSns5.xserver.jp2026-05-25 → 2026-07-12 · 3 obs
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
○NSuns01.lolipop.jp2020-02-12 → 2020-02-12 · 3 obs
○ 2026-05-25 18:28:42
○ 2026-07-12 16:35:48
○NSuns02.lolipop.jp2020-02-12 → 2020-02-12 · 3 obs
○ 2026-05-25 18:28:42
○ 2026-07-12 16:35:48
●MX28ko.jp2026-05-25 → 2026-07-12 · 3 obs
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
○MXmx01.lolipop.jp2020-02-12 → 2020-02-12 · 3 obs
○ 2026-05-25 18:28:42
○ 2026-07-12 16:35:48
●A103.141.97.362026-05-25 → 2026-07-12 · 3 obs
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
○A157.7.107.2152020-02-12 → 2020-02-12 · 3 obs
○ 2026-05-25 18:28:42
○ 2026-07-12 16:35:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| 28ko.jp | ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp... | 11 records |
✅ Authoritative Response
Server:35.72.43.26
NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 28ko.jp (unsigned zone)
⏱️ Timing
Total: 2197ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.141.97.36 |
| NS | 5 | ns2.xserver.jp, ns1.xserver.jp... |
| MX | 1 | 28ko.jp (pri: 0) |
| TXT | 1 | v=spf1 +a:sv10835.xserver.jp +a:28ko.jp |
| 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
The MX record for 28ko.jp points back to 28ko.jp — it is its own mail server.
IP Addresses
28ko.jp directs to one IP number, which is 103.141.97.36.
Among the host names that share IP numbers with 28ko.jp are sv10835.xserver.jp, souzoku-hokkaido.net, pokerjaws.com and two others.
Name Servers
The authoritative name servers for 28ko.jp are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
At least some of 28ko.jp's name servers are shared with other domains, for example goyat.biz, ai-supplement.com, washoku-sen.jp and two more.
These name servers tend to be deployed in combination with the name servers ns4.xserver.jp and ns5.xserver.jp.
Hosts with three IP address records:
The hostname ns1.xserver.jp directs to 202.226.36.164, 202.226.36.170 and 202.226.36.246.
The hostname ns4.xserver.jp directs to 183.90.224.226, 183.90.224.230 and 202.226.39.247.
The hostname ns5.xserver.jp directs to 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Hosts that resolve to one IP address:
ns2.xserver.jp has the IP address 35.72.43.26.
ns3.xserver.jp has the IP address 202.226.36.247.
Mail Servers
The MX record for 28ko.jp points to a single mail server: 28ko.jp.
28ko.jp directs to just one IP number, 103.141.97.36.