koubidou.com - robtex.com
koubidou.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1771291435 | ||||||
MX for
koubidou.com |
Same first word
koubidou.com |
Similar names
DNS History
11 records (7 active, 4 former)
○NSmaster.dns.ne.jp2015-07-07 → 2017-08-26 · 4 obs
● 2017-08-26 18:03:44
○ 2026-02-27 16:44:24
○ 2026-03-24 08:14:00
○NSns1.dns.ne.jp2015-07-07 → 2017-08-26 · 4 obs
● 2017-08-26 18:03:44
○ 2026-02-27 16:44:24
○ 2026-03-24 08:14:00
●NSns1.xserver.jp2026-02-27 → 2026-03-24 · 3 obs
● 2026-02-27 16:44:24
● 2026-03-24 08:14:00
○NSns2.dns.ne.jp2015-07-07 → 2017-08-26 · 4 obs
● 2017-08-26 18:03:44
○ 2026-02-27 16:44:24
○ 2026-03-24 08:14:00
●NSns2.xserver.jp2026-02-27 → 2026-03-24 · 3 obs
● 2026-02-27 16:44:24
● 2026-03-24 08:14:00
●NSns3.xserver.jp2026-02-27 → 2026-03-24 · 3 obs
● 2026-02-27 16:44:24
● 2026-03-24 08:14:00
●NSns4.xserver.jp2026-02-27 → 2026-03-24 · 3 obs
● 2026-02-27 16:44:24
● 2026-03-24 08:14:00
●NSns5.xserver.jp2026-02-27 → 2026-03-24 · 3 obs
● 2026-02-27 16:44:24
● 2026-03-24 08:14:00
●MXkoubidou.com2015-07-07 → 2026-03-24 · 2 obs
● 2026-03-24 08:14:00
●A162.43.121.612026-02-27 → 2026-03-24 · 3 obs
● 2026-02-27 16:44:24
● 2026-03-24 08:14:00
○A219.94.128.1942015-07-07 → 2017-08-26 · 4 obs
● 2017-08-26 18:03:44
○ 2026-02-27 16:44:24
○ 2026-03-24 08:14:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| koubidou.com | ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp... | - |
✅ Authoritative Response
Server:157.112.182.220
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 koubidou.com (unsigned zone)
⏱️ Timing
Total: 543ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.43.121.61 |
| NS | 5 | ns4.xserver.jp, ns5.xserver.jp... |
| MX | 1 | koubidou.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv14260.xserver.jp +a:koubidou |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
Analysis
Mail Server Role
koubidou.com serves as the mail server for koubidou.com.
IP Addresses
koubidou.com points to a single IP number: 162.43.121.61.
Other host names, for instance umeoka-kampo.com, operation-manual.com, i-careers.org, mail.zuikou.jp and www.morita-iin.jp share IP numbers with koubidou.com.
Name Servers
koubidou.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
koubidou.com shares name servers with other domains at least partially, for instance short-cut.jp, minpos.net, acecorp.jp, share-note.info and inoriuta.com.
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
A single mail server handles koubidou.com and koubidou.com.
Host name koubidou.com resolves to IP 162.43.121.61.