chk-school.jp - robtex.com
chk-school.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=1777596302 | ||||||
MX for
chk-school.jp |
Same first word
chk-school.jp |
Similar names
DNS History
13 records (7 active, 6 former)
○NSns.namedserver.net2015-12-02 → 2016-12-24 · 5 obs
● 2015-12-02 06:01:40
● 2016-12-24 02:42:20
○ 2026-03-21 22:48:38
○ 2026-05-01 01:11:06
○NSns1.secure.net2015-05-08 → 2015-10-23 · 4 obs
● 2015-10-23 01:37:36
○ 2015-12-02 06:01:40
○ 2026-05-01 01:11:06
●NSns1.xserver.jp2026-03-21 → 2026-05-01 · 3 obs
● 2026-03-21 22:48:38
● 2026-05-01 01:11:06
○NSns2.namedserver.net2015-12-02 → 2016-12-24 · 5 obs
● 2015-12-02 06:01:40
● 2016-12-24 02:42:20
○ 2026-03-21 22:48:38
○ 2026-05-01 01:11:06
○NSns2.secure.net2015-05-08 → 2015-10-23 · 4 obs
● 2015-10-23 01:37:36
○ 2015-12-02 06:01:40
○ 2026-05-01 01:11:06
●NSns2.xserver.jp2026-03-21 → 2026-05-01 · 3 obs
● 2026-03-21 22:48:38
● 2026-05-01 01:11:06
●NSns3.xserver.jp2026-03-21 → 2026-05-01 · 3 obs
● 2026-03-21 22:48:38
● 2026-05-01 01:11:06
●NSns4.xserver.jp2026-03-21 → 2026-05-01 · 3 obs
● 2026-03-21 22:48:38
● 2026-05-01 01:11:06
●NSns5.xserver.jp2026-03-21 → 2026-05-01 · 3 obs
● 2026-03-21 22:48:38
● 2026-05-01 01:11:06
●MXchk-school.jp2015-05-08 → 2026-05-01 · 2 obs
● 2026-05-01 01:11:06
○A153.122.96.1942015-12-02 → 2016-12-24 · 5 obs
● 2015-12-02 06:01:40
● 2016-12-24 02:42:20
○ 2026-03-21 22:48:38
○ 2026-05-01 01:11:06
○A198.66.255.92015-05-08 → 2015-10-23 · 4 obs
● 2015-10-23 01:37:36
○ 2015-12-02 06:01:40
○ 2026-05-01 01:11:06
●A85.131.207.892026-03-21 → 2026-05-01 · 3 obs
● 2026-03-21 22:48:38
● 2026-05-01 01:11:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, d.dns.jp, g.dns.jp, f.dns.jp... | - |
| chk-school.jp | ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp, ns1.xserver.jp... | 11 records |
✅ Authoritative Response
Server:157.112.182.220
NS records: ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp, ns1.xserver.jp, ns2.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for chk-school.jp (unsigned zone)
⏱️ Timing
Total: 855ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 85.131.207.89 |
| NS | 5 | ns2.xserver.jp, ns3.xserver.jp... |
| MX | 1 | chk-school.jp (pri: 0) |
| TXT | 1 | v=spf1 +a:sv16348.xserver.jp +a:chk-scho |
| 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
chk-school.jp serves as the mail server for chk-school.jp.
IP Addresses
chk-school.jp points to an IP address: 85.131.207.89.
other host names include sv16348.xserver.jp, chk-sc.co.jp, miel-care.com, mia-mila.com and chk-seiyu.jp; they share IP numbers with chk-school.jp.
Name Servers
chk-school.jp is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
chk-school.jp at least partially shares name servers with other domains, for instance pickle-one.com, nkk.jp, mashimo.biz, global-news-diary.net and petshop-ann.com.
Names with three IP numbers:
ns1.xserver.jp points to: 202.226.36.164, 202.226.36.170 and 202.226.36.246.
ns4.xserver.jp points to: 183.90.224.226, 183.90.224.230 and 202.226.39.247.
ns5.xserver.jp points to: 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Names with one IP number:
ns2.xserver.jp points to: 35.72.43.26.
ns3.xserver.jp points to: 202.226.36.247.
Mail Servers
chk-school.jp is handled by a single mail server.
The host name chk-school.jp points to IP 85.131.207.89.