ka-u.com - robtex.com
ka-u.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 157.112.187.99🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc. | ||||||
| PTR | sv78.star.ne.jp | ||||||
| NS | ns1.star-domain.jp ⭐ | ||||||
| A | 162.43.112.88🇯🇵 XSERVER-AS162.43.112.0/21 XSERVER Inc. | ||||||
| PTR | ns1.star-domain.jp | ||||||
| NS | ns2.star-domain.jp | ||||||
| A | 176.32.75.178🇯🇵 Amazon176.32.64.0/19 EC2 NRT prefix | ||||||
| PTR | ns2.star-domain.jp | ||||||
| NS | ns3.star-domain.jp | ||||||
| A | 162.43.113.241🇯🇵 XSERVER-AS162.43.112.0/21 XSERVER Inc. | ||||||
| PTR | ns3.star-domain.jp | ||||||
| MX | ka-u.com ⭐ | ||||||
| A | 157.112.187.99🇯🇵 XSERVER-AS157.112.184.0/21 XSERVER Inc. | ||||||
| PTR | sv78.star.ne.jp | ||||||
| TXT | v=spf1 +a:sv78.star.ne.jp +a:ka-u.com +mx include:spf.sender.netowl.jp ~all | ||||||
| SOA | ns1.star-domain.jproot@star-domain.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=1771291435 | ||||||
MX for
ka-u.com |
Same first word
ka-u.com |
Similar names
a-ku.com |
u-ka.cn |
a-uk.ru |
a-uk.com |
ku-a.com |
uk-a.com |
au-k.de |
au-k.com |
u-ka.org |
a-ku.co.jp |
k-au.com |
u-ka.de |
uk-a.de |
a-ku.net |
k-ua.co.kr |
a-uk.co.uk |
k-ua.net |
u-ak.com |
DNS History
10 records (5 active, 5 former)
○NSns09.domaincontrol.com2016-02-09 → 2016-12-29 · 4 obs
● 2016-12-29 07:36:50
○ 2017-03-18 18:39:06
○ 2026-03-24 07:38:12
●NSns1.star-domain.jp2026-03-02 → 2026-03-24 · 3 obs
● 2026-03-02 15:03:06
● 2026-03-24 07:38:12
○NSns10.domaincontrol.com2016-02-09 → 2016-12-29 · 4 obs
● 2016-12-29 07:36:50
○ 2017-03-18 18:39:06
○ 2026-03-24 07:38:12
●NSns2.star-domain.jp2026-03-02 → 2026-03-24 · 3 obs
● 2026-03-02 15:03:06
● 2026-03-24 07:38:12
●NSns3.star-domain.jp2026-03-02 → 2026-03-24 · 3 obs
● 2026-03-02 15:03:06
● 2026-03-24 07:38:12
●MXka-u.com2026-03-02 → 2026-03-24 · 3 obs
● 2026-03-02 15:03:06
● 2026-03-24 07:38:12
○MXmailstore1.secureserver.net2016-02-09 → 2016-12-29 · 4 obs
● 2016-12-29 07:36:50
○ 2017-03-18 18:39:06
○ 2026-03-24 07:38:12
○MXsmtp.secureserver.net2016-02-09 → 2016-12-29 · 4 obs
● 2016-12-29 07:36:50
○ 2017-03-18 18:39:06
○ 2026-03-24 07:38:12
●A157.112.187.992026-03-02 → 2026-03-24 · 3 obs
● 2026-03-02 15:03:06
● 2026-03-24 07:38:12
○A199.59.243.1202016-02-09 → 2016-12-29 · 4 obs
● 2016-12-29 07:36:50
○ 2017-03-18 18:39:06
○ 2026-03-24 07:38:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| ka-u.com | ns1.star-domain.jp, ns2.star-domain.jp, ns3.star-domain.jp | - |
✅ Authoritative Response
Server:162.43.113.241
NS records: ns1.star-domain.jp, ns2.star-domain.jp, ns3.star-domain.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ka-u.com (unsigned zone)
⏱️ Timing
Total: 1505ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 157.112.187.99 |
| NS | 3 | ns2.star-domain.jp, ns3.star-domain.jp... |
| MX | 1 | ka-u.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv78.star.ne.jp +a:ka-u.com +m |
| SOA | 1 | ns1.star-domain.jp root.star-domain.jp |
Analysis
Mail Server Role
ka-u.com serves as the mail server for ka-u.com.
IP Addresses
ka-u.com points to an IP address: 157.112.187.99.
other host names include sinsen.org, enloop-inc.com, zuisen.jp, saw-ae.info and undoi.com; they share IP numbers with ka-u.com.
Name Servers
ka-u.com is delegated to three name servers ns1.star-domain.jp, ns2.star-domain.jp and ns3.star-domain.jp.
ka-u.com at least partially shares name servers with other domains, for instance msuna.net, ag-web.jp, tabemonogame-matome.jp, hosbiz.net and xnavi.net.
Host names with one IP:
ns1.star-domain.jp points to 162.43.112.88; ns2.star-domain.jp points to 176.32.75.178; ns3.star-domain.jp points to 162.43.113.241.
Mail Servers
ka-u.com is handled by a single mail server.
The host name ka-u.com points to IP 157.112.187.99.