tschool.jp - robtex.com
tschool.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=1785424503 | ||||||
MX for
tschool.jp |
Same first word
tschool.io |
tschool.org |
tschool.ru |
tschool.us |
tschool.edu.vn |
tschool.com |
tschool.jp |
tschool.de |
tschool.net |
tschool.co.kr |
tschool.tokyo |
tschool.cn |
tschool.in |
Similar names
DNS History
8 records (7 active, 1 former)
●NSns1.xserver.jp2018-05-14 → 2026-07-30 · 2 obs
● 2026-07-30 15:35:46
●NSns2.xserver.jp2018-05-14 → 2026-07-30 · 2 obs
● 2026-07-30 15:35:46
●NSns3.xserver.jp2018-05-14 → 2026-07-30 · 2 obs
● 2026-07-30 15:35:46
●NSns4.xserver.jp2018-05-14 → 2026-07-30 · 2 obs
● 2026-07-30 15:35:46
●NSns5.xserver.jp2018-05-14 → 2026-07-30 · 2 obs
● 2026-07-30 15:35:46
●MXtschool.jp2018-05-14 → 2026-07-30 · 2 obs
● 2026-07-30 15:35:46
●A183.90.232.1892026-06-27 → 2026-07-30 · 3 obs
● 2026-06-27 07:37:04
● 2026-07-30 15:35:46
○A183.90.232.382018-05-14 → 2018-05-14 · 3 obs
○ 2026-06-27 07:37:04
○ 2026-07-30 15:35:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| tschool.jp | ns4.xserver.jp, ns3.xserver.jp, ns1.xserver.jp, ns5.xserver.jp... | 11 records |
✅ Authoritative Response
Server:183.90.224.226
NS records: ns4.xserver.jp, ns3.xserver.jp, ns1.xserver.jp, ns5.xserver.jp, ns2.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tschool.jp (unsigned zone)
⏱️ Timing
Total: 754ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.90.232.189 |
| NS | 5 | ns2.xserver.jp, ns1.xserver.jp... |
| MX | 1 | tschool.jp (pri: 0) |
| TXT | 1 | v=spf1 +ip4:183.90.232.38 include:1lejen |
| SOA | 1 | ns1.xserver.jp root.sv0.xserver.jp |
📌 Glue Records Collected
Total: 11
Out-of-bailiwick: 11 (ns5.xserver.jp, ns5.xserver.jp, ns5.xserver.jp...)
Analysis
Mail Server Role
tschool.jp handles its own mail, functioning as its own mail server.
IP Addresses
tschool.jp resolves to just one IP address, 183.90.232.189.
Two other host names, along with mail.abcgroup.asia, yukihiro.org and alicialife.net, also share IP numbers with tschool.jp.
Name Servers
tschool.jp delegates to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
tschool.jp partially shares its NS delegation with several other domains, including t-marineblue.com, keiba.love, gehams.net and two others.
These name servers are regularly seen alongside ns4.xserver.jp and ns5.xserver.jp as name servers.
Hostnames that map to three IP numbers:
ns1.xserver.jp resolves to 202.226.36.164, 202.226.36.170 and 202.226.36.246.
ns4.xserver.jp resolves to 183.90.224.226, 183.90.224.230 and 202.226.39.247.
ns5.xserver.jp resolves to 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Host names that point to one IP address:
ns2.xserver.jp resolves to 35.72.43.26.
ns3.xserver.jp resolves to 202.226.36.247.
Mail Servers
tschool.jp is served by just one mail server: tschool.jp.
tschool.jp points to one IP number — 183.90.232.189.