cebu21.jp - robtex.com
cebu21.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=1778870703 | ||||||
MX for
cebu21.jp |
Subdomains
www.cebu21.jp |
Same first word
Similar names
DNS History
13 records (7 active, 6 former)
○NSns.kk-ca.net2015-07-18 → 2019-12-21 · 4 obs
● 2019-12-21 07:35:40
○ 2026-04-07 07:37:30
○ 2026-05-15 20:08:36
●NSns1.xserver.jp2026-04-07 → 2026-05-15 · 3 obs
● 2026-04-07 07:37:30
● 2026-05-15 20:08:36
○NSns2.kk-ca.net2015-07-18 → 2019-12-21 · 4 obs
● 2019-12-21 07:35:40
○ 2026-04-07 07:37:30
○ 2026-05-15 20:08:36
●NSns2.xserver.jp2026-04-07 → 2026-05-15 · 3 obs
● 2026-04-07 07:37:30
● 2026-05-15 20:08:36
●NSns3.xserver.jp2026-04-07 → 2026-05-15 · 3 obs
● 2026-04-07 07:37:30
● 2026-05-15 20:08:36
●NSns4.xserver.jp2026-04-07 → 2026-05-15 · 3 obs
● 2026-04-07 07:37:30
● 2026-05-15 20:08:36
●NSns5.xserver.jp2026-04-07 → 2026-05-15 · 3 obs
● 2026-04-07 07:37:30
● 2026-05-15 20:08:36
●MXcebu21.jp2026-04-07 → 2026-05-15 · 3 obs
● 2026-04-07 07:37:30
● 2026-05-15 20:08:36
○MXvmx0.mail-servers.org2015-07-18 → 2019-12-21 · 4 obs
● 2019-12-21 07:35:40
○ 2026-04-07 07:37:30
○ 2026-05-15 20:08:36
○MXvmx1.mail-servers.org2015-07-18 → 2019-12-21 · 4 obs
● 2019-12-21 07:35:40
○ 2026-04-07 07:37:30
○ 2026-05-15 20:08:36
○MXvmx2.mail-servers.org2015-07-18 → 2019-12-21 · 4 obs
● 2019-12-21 07:35:40
○ 2026-04-07 07:37:30
○ 2026-05-15 20:08:36
○A121.83.238.382015-07-18 → 2019-12-21 · 4 obs
● 2019-12-21 07:35:40
○ 2026-04-07 07:37:30
○ 2026-05-15 20:08:36
●A85.131.207.1152026-04-07 → 2026-05-15 · 3 obs
● 2026-04-07 07:37:30
● 2026-05-15 20:08:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| cebu21.jp | ns5.xserver.jp, ns3.xserver.jp, ns2.xserver.jp, ns1.xserver.jp... | 11 records |
✅ Authoritative Response
Server:202.226.39.247
NS records: ns5.xserver.jp, ns3.xserver.jp, ns2.xserver.jp, ns1.xserver.jp, ns4.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cebu21.jp (unsigned zone)
⏱️ Timing
Total: 868ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 85.131.207.115 |
| NS | 5 | ns2.xserver.jp, ns3.xserver.jp... |
| MX | 1 | cebu21.jp (pri: 0) |
| TXT | 1 | v=spf1 +a:sv16374.xserver.jp +a:cebu21.j |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
📌 Glue Records Collected
Total: 11
Out-of-bailiwick: 11 (ns5.xserver.jp, ns5.xserver.jp, ns5.xserver.jp...)
Analysis
Hierarchy
cebu21.jp is the parent of www.cebu21.jp.
Mail Server Role
cebu21.jp is the mail server for cebu21.jp.
IP Addresses
cebu21.jp resolves to a single IP: 85.131.207.115.
Other host names, for instance jspf.org, kiriisangyo.co.jp, yamaishimetal.co.jp, ilabo.co.jp and hatarakuplus.com share IP numbers with cebu21.jp.
Name Servers
cebu21.jp delegates to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
cebu21.jp shares some name servers with other domains, for example aibilife.com, fujisan-koetemasu.com, ryokan1123.com, tsubokin.co.jp and toriblo.com.
These name servers are commonly used with the name servers ns3.vserver.jp.
Host 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
Host 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
One mail server handles cebu21.jp.
Host name cebu21.jp points to IP 85.131.207.115.