keiba-course.com - robtex.com
keiba-course.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=1778454341 | ||||||
MX for
keiba-course.com |
Same first word
keiba-course.com |
DNS History
12 records (7 active, 5 former)
○NSdns01.gmoserver.jp2016-12-17 → 2016-12-17 · 3 obs
○ 2019-04-10 08:26:44
○ 2026-05-10 23:33:28
○NSdns02.gmoserver.jp2016-12-17 → 2016-12-17 · 3 obs
○ 2019-04-10 08:26:44
○ 2026-05-10 23:33:28
●NSns1.xserver.jp2019-04-10 → 2026-05-10 · 3 obs
● 2019-04-10 08:26:44
● 2026-05-10 23:33:28
●NSns2.xserver.jp2019-04-10 → 2026-05-10 · 3 obs
● 2019-04-10 08:26:44
● 2026-05-10 23:33:28
●NSns3.xserver.jp2019-04-10 → 2026-05-10 · 3 obs
● 2019-04-10 08:26:44
● 2026-05-10 23:33:28
●NSns4.xserver.jp2019-04-10 → 2026-05-10 · 3 obs
● 2019-04-10 08:26:44
● 2026-05-10 23:33:28
●NSns5.xserver.jp2019-04-10 → 2026-05-10 · 3 obs
● 2019-04-10 08:26:44
● 2026-05-10 23:33:28
●MXkeiba-course.com2019-04-10 → 2026-05-10 · 3 obs
● 2019-04-10 08:26:44
● 2026-05-10 23:33:28
○MXmx4.gmoserver.jp2016-12-17 → 2016-12-17 · 3 obs
○ 2019-04-10 08:26:44
○ 2026-05-10 23:33:28
●A162.43.122.1792026-03-12 → 2026-05-10 · 3 obs
● 2026-03-12 05:33:38
● 2026-05-10 23:33:28
○A183.90.240.412019-04-10 → 2019-04-10 · 4 obs
● 2019-04-10 08:26:44
○ 2026-03-12 05:33:38
○ 2026-05-10 23:33:28
○A211.123.214.82016-12-17 → 2016-12-17 · 3 obs
○ 2019-04-10 08:26:44
○ 2026-05-10 23:33:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| keiba-course.com | ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp... | - |
✅ Authoritative Response
Server:202.226.36.247
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 keiba-course.com (unsigned zone)
⏱️ Timing
Total: 1049ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.43.122.179 |
| NS | 5 | ns3.xserver.jp, ns5.xserver.jp... |
| MX | 1 | keiba-course.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv14578.xserver.jp +a:keiba-co |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
Analysis
Mail Server Role
keiba-course.com is the mail server for keiba-course.com.
IP Addresses
keiba-course.com resolves to a single IP: 162.43.122.179.
Other host names, for instance ishikawa-shoten.com, takumasato.com, clover7.com, alatable.co.jp and mail.rwrwrw.com share IP numbers with keiba-course.com.
Name Servers
keiba-course.com delegates to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
keiba-course.com shares some name servers with other domains, for example wsr.jp, hamamatsu-tire.com, shibu-kita-d-a.jp, ihinshori.com and y-hashimoto.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
One mail server handles keiba-course.com.
Host name keiba-course.com points to IP 162.43.122.179.