webinarsystem.jp - robtex.com
webinarsystem.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=1778436003 | ||||||
Previously NS for
webinarsystem.jp |
MX for
webinarsystem.jp |
Same first word
webinarsystem.jp |
DNS History
12 records (7 active, 5 former)
○NSdns01.muumuu-domain.com2016-12-05 → 2017-09-11 · 4 obs
● 2017-09-11 00:25:54
○ 2026-04-17 22:41:14
○ 2026-05-10 18:15:08
○NSdns02.muumuu-domain.com2016-12-05 → 2017-09-11 · 4 obs
● 2017-09-11 00:25:54
○ 2026-04-17 22:41:14
○ 2026-05-10 18:15:08
●NSns1.xserver.jp2026-04-17 → 2026-05-10 · 3 obs
● 2026-04-17 22:41:14
● 2026-05-10 18:15:08
●NSns2.xserver.jp2026-04-17 → 2026-05-10 · 3 obs
● 2026-04-17 22:41:14
● 2026-05-10 18:15:08
●NSns3.xserver.jp2026-04-17 → 2026-05-10 · 3 obs
● 2026-04-17 22:41:14
● 2026-05-10 18:15:08
●NSns4.xserver.jp2026-04-17 → 2026-05-10 · 3 obs
● 2026-04-17 22:41:14
● 2026-05-10 18:15:08
●NSns5.xserver.jp2026-04-17 → 2026-05-10 · 3 obs
● 2026-04-17 22:41:14
● 2026-05-10 18:15:08
○NSwebinarsystem.jp2016-12-05 → 2017-09-11 · 4 obs
● 2017-09-11 00:25:54
○ 2026-04-17 22:41:14
○ 2026-05-10 18:15:08
○MXdmail.kagoya.net2016-12-05 → 2017-09-11 · 4 obs
● 2017-09-11 00:25:54
○ 2026-04-17 22:41:14
○ 2026-05-10 18:15:08
●MXwebinarsystem.jp2026-04-17 → 2026-05-10 · 3 obs
● 2026-04-17 22:41:14
● 2026-05-10 18:15:08
○A133.18.67.582016-12-05 → 2017-09-11 · 4 obs
● 2017-09-11 00:25:54
○ 2026-04-17 22:41:14
○ 2026-05-10 18:15:08
●A183.181.98.432026-04-17 → 2026-05-10 · 3 obs
● 2026-04-17 22:41:14
● 2026-05-10 18:15:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| webinarsystem.jp | ns5.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns1.xserver.jp... | 11 records |
✅ Authoritative Response
Server:157.112.182.218
NS records: ns5.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns1.xserver.jp, ns2.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for webinarsystem.jp (unsigned zone)
⏱️ Timing
Total: 915ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.181.98.43 |
| NS | 5 | ns1.xserver.jp, ns3.xserver.jp... |
| MX | 1 | webinarsystem.jp (pri: 0) |
| TXT | 2 | v=spf1 +a:webinarsystem.jp include:spf.s, amazonses:wBUwFdfn8Aa5Cds9qAZI6e6wk1RZHa |
| 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
Mail Server Role
webinarsystem.jp serves as the mail server for webinarsystem.jp.
IP Addresses
webinarsystem.jp resolves to one IP number: 183.181.98.43.
Other host names, for instance sv6042.xserver.jp, solution-aim.co.jp, isoweb.jma.or.jp, www.solution-aim.co.jp and www.akari-media.com share IP numbers with webinarsystem.jp.
Name Servers
webinarsystem.jp is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
webinarsystem.jp at least partially shares name servers with other domains, including htvideo.net, webosque.com, forcetech.jp, andou-law.com and aqua-pro-web.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
webinarsystem.jp is handled by a single mail server, webinarsystem.jp.
Host name webinarsystem.jp resolves to a single IP: 183.181.98.43.