28ko.jp - robtex.com

28ko.jp

DNSSEC⚠️ Not signed
A103.141.97.36🇯🇵 XSERVER-AS103.141.97.0/24 XSERVER Inc.
PTRsv10835.xserver.jp
NSns1.xserver.jp
A202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns1.xserver.jp
NSns2.xserver.jp
A35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xserver.jp
NSns3.xserver.jp
A202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns3.xserver.jp
NSns4.xserver.jp
A183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns4.xserver.jp
NSns5.xserver.jp
A157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns5.xserver.jp
MX28ko.jp
A103.141.97.36🇯🇵 XSERVER-AS103.141.97.0/24 XSERVER Inc.
PTRsv10835.xserver.jp
TXTv=spf1 +a:sv10835.xserver.jp +a:28ko.jp +mx include:spf.sender.xserver.jp ~all
SOAns1.xserver.jproot@xserver.jp serial=0

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1783873803

MX for

Same first word

Similar names

DNS History

11 records (7 active, 4 former)

202120222023202420252026NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpuns01.lolipop.jpuns02.lolipop.jpMX28ko.jpmx01.lolipop.jpA103.141.97.36157.7.107.215
NSns1.xserver.jp2026-05-25 → 2026-07-12 · 3 obs
○ 2020-02-12 05:10:22
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
NSns2.xserver.jp2026-05-25 → 2026-07-12 · 3 obs
○ 2020-02-12 05:10:22
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
NSns3.xserver.jp2026-05-25 → 2026-07-12 · 3 obs
○ 2020-02-12 05:10:22
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
NSns4.xserver.jp2026-05-25 → 2026-07-12 · 3 obs
○ 2020-02-12 05:10:22
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
NSns5.xserver.jp2026-05-25 → 2026-07-12 · 3 obs
○ 2020-02-12 05:10:22
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
NSuns01.lolipop.jp2020-02-12 → 2020-02-12 · 3 obs
● 2020-02-12 05:10:22
○ 2026-05-25 18:28:42
○ 2026-07-12 16:35:48
NSuns02.lolipop.jp2020-02-12 → 2020-02-12 · 3 obs
● 2020-02-12 05:10:22
○ 2026-05-25 18:28:42
○ 2026-07-12 16:35:48
MX28ko.jp2026-05-25 → 2026-07-12 · 3 obs
○ 2020-02-12 05:10:22
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
MXmx01.lolipop.jp2020-02-12 → 2020-02-12 · 3 obs
● 2020-02-12 05:10:22
○ 2026-05-25 18:28:42
○ 2026-07-12 16:35:48
A103.141.97.362026-05-25 → 2026-07-12 · 3 obs
○ 2020-02-12 05:10:22
● 2026-05-25 18:28:42
● 2026-07-12 16:35:48
A157.7.107.2152020-02-12 → 2020-02-12 · 3 obs
● 2020-02-12 05:10:22
○ 2026-05-25 18:28:42
○ 2026-07-12 16:35:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
28ko.jpns1.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

TypeCountSample Data
A1103.141.97.36
NS5ns2.xserver.jp, ns1.xserver.jp...
MX128ko.jp (pri: 0)
TXT1v=spf1 +a:sv10835.xserver.jp +a:28ko.jp
SOA1ns1.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.