kensokb.com - robtex.com
kensokb.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.90.231.55🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc. | ||||||
| PTR | sv254.xbiz.ne.jp | ||||||
| NS | ns1.xbiz.ne.jp ⭐ | ||||||
| A | 157.112.182.247🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc. | ||||||
| PTR | ns1.xbiz.ne.jp | ||||||
| NS | ns2.xbiz.ne.jp | ||||||
| A | 35.76.79.244🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix | ||||||
| PTR | ns2.xbiz.ne.jp | ||||||
| NS | ns3.xbiz.ne.jp | ||||||
| A | 157.112.191.237🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc. | ||||||
| PTR | ns3.xbiz.ne.jp | ||||||
| MX | kensokb.com ⭐ | ||||||
| A | 183.90.231.55🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc. | ||||||
| PTR | sv254.xbiz.ne.jp | ||||||
| TXT | v=spf1 +a:sv254.xbiz.ne.jp +a:kensokb.com +mx include:spf.sender.xserver.jp ~all | ||||||
| SOA | ns1.xbiz.ne.jproot@xbiz.ne.jp serial=0 | ||||||
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=1774371157 | ||||||
MX for
kensokb.com |
Same first word
kensokb.com |
Similar names
DNS History
11 records (5 active, 6 former)
●NSns1.xbiz.ne.jp2026-03-07 → 2026-03-24 · 3 obs
● 2026-03-07 06:53:02
● 2026-03-24 17:15:06
●NSns2.xbiz.ne.jp2026-03-07 → 2026-03-24 · 3 obs
● 2026-03-07 06:53:02
● 2026-03-24 17:15:06
●NSns3.xbiz.ne.jp2026-03-07 → 2026-03-24 · 3 obs
● 2026-03-07 06:53:02
● 2026-03-24 17:15:06
○NSns4.cpi.ad.jp2015-08-01 → 2018-07-22 · 4 obs
● 2018-07-22 21:39:06
○ 2026-03-07 06:53:02
○ 2026-03-24 17:15:06
○NSns5.cpi.ad.jp2015-08-01 → 2018-07-22 · 4 obs
● 2018-07-22 21:39:06
○ 2026-03-07 06:53:02
○ 2026-03-24 17:15:06
●MXkensokb.com2026-03-07 → 2026-03-24 · 3 obs
● 2026-03-07 06:53:02
● 2026-03-24 17:15:06
○MXvlmx20.secure.ne.jp2015-08-01 → 2018-07-22 · 4 obs
● 2018-07-22 21:39:06
○ 2026-03-07 06:53:02
○ 2026-03-24 17:15:06
○MXvlmx21.secure.ne.jp2015-08-01 → 2018-07-22 · 4 obs
● 2018-07-22 21:39:06
○ 2026-03-07 06:53:02
○ 2026-03-24 17:15:06
○MXvlmx22.secure.ne.jp2015-08-01 → 2018-07-22 · 4 obs
● 2018-07-22 21:39:06
○ 2026-03-07 06:53:02
○ 2026-03-24 17:15:06
○A150.60.70.642015-08-01 → 2018-07-22 · 4 obs
● 2018-07-22 21:39:06
○ 2026-03-07 06:53:02
○ 2026-03-24 17:15:06
●A183.90.231.552026-03-07 → 2026-03-24 · 3 obs
● 2026-03-07 06:53:02
● 2026-03-24 17:15:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| kensokb.com | ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp | - |
✅ Authoritative Response
Server:157.112.182.247
NS records: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp, ns3.xbiz.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kensokb.com (unsigned zone)
⏱️ Timing
Total: 936ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.90.231.55 |
| NS | 3 | ns2.xbiz.ne.jp, ns1.xbiz.ne.jp... |
| MX | 1 | kensokb.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv254.xbiz.ne.jp +a:kensokb.co |
| SOA | 1 | ns1.xbiz.ne.jp root.xbiz.ne.jp |
Analysis
Mail Server Role
kensokb.com serves as the mail server for kensokb.com.
IP Addresses
kensokb.com resolves to a single IP address: 183.90.231.55.
Other host names including reo.ne.jp, sankocell.com, tajima.biz, nagopick.net and nozakicc.com share IP numbers with kensokb.com.
Name Servers
kensokb.com is delegated to three name servers: ns1.xbiz.ne.jp, ns2.xbiz.ne.jp and ns3.xbiz.ne.jp.
kensokb.com at least partially shares name servers with other domains, including try-s.net, bcp-c.com, 1st-mob.com, airsite.jp and yana.co.jp.
Hostnames with a single IP:
ns1.xbiz.ne.jp points to: 157.112.182.247.
ns2.xbiz.ne.jp points to: 35.76.79.244.
ns3.xbiz.ne.jp points to: 157.112.191.237.
Mail Servers
A single mail server handles kensokb.com.
kensokb.com points to a single IP: 183.90.231.55.