kubotek.com - robtex.com
kubotek.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2403:3a00:106:2:219:94:210:197🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| A | 219.94.210.197🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| NS | master.dns.ne.jp ⭐ | ||||||
| A | 210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | master.dns.ne.jp | ||||||
| NS | ns1.dns.ne.jp | ||||||
| A | 61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | ns1.dns.ne.jp | ||||||
| NS | ns2.dns.ne.jp | ||||||
| A | 133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | ns2.dns.ne.jp | ||||||
| MX | kubotek.com ⭐ | ||||||
| A | 2403:3a00:106:2:219:94:210:197🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| A | 219.94.210.197🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | 197.210.94.219.static.www246b.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www246b.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2018-11-28 #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=1774680622 | ||||||
PTR for
MX for
kubotek.com |
Same first word
Similar names
DNS History
9 records (6 active, 3 former)
●NSmaster.dns.ne.jp2026-03-21 → 2026-03-28 · 3 obs
● 2026-03-21 16:40:28
● 2026-03-28 06:58:24
●NSns1.dns.ne.jp2026-03-21 → 2026-03-28 · 3 obs
● 2026-03-21 16:40:28
● 2026-03-28 06:58:24
●NSns2.dns.ne.jp2026-03-21 → 2026-03-28 · 3 obs
● 2026-03-21 16:40:28
● 2026-03-28 06:58:24
○NSns3.sphere.ad.jp2015-06-03 → 2018-10-01 · 4 obs
● 2018-10-01 07:18:42
○ 2026-03-21 16:40:28
○ 2026-03-28 06:58:24
○NSns4.sphere.ad.jp2015-06-03 → 2018-10-01 · 4 obs
● 2018-10-01 07:18:42
○ 2026-03-21 16:40:28
○ 2026-03-28 06:58:24
●MXkubotek.com2015-06-03 → 2026-03-28 · 2 obs
● 2026-03-28 06:58:24
○A210.136.151.542015-06-03 → 2018-10-01 · 4 obs
● 2018-10-01 07:18:42
○ 2026-03-21 16:40:28
○ 2026-03-28 06:58:24
●A219.94.210.1972026-03-21 → 2026-03-28 · 3 obs
● 2026-03-21 16:40:28
● 2026-03-28 06:58:24
●A2403:3a00:106:2:219:94:210:1972026-03-21 → 2026-03-28 · 3 obs
● 2026-03-21 16:40:28
● 2026-03-28 06:58:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, b.gtld-servers.net, a.gtld-servers.net, l.gtld-servers.net... | - |
| kubotek.com | ns1.dns.ne.jp, ns2.dns.ne.jp | - |
✅ Authoritative Response
Server:133.167.21.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kubotek.com (unsigned zone)
⏱️ Timing
Total: 1272ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.94.210.197 |
| AAAA | 1 | 2403:3a00:106:2:219:94:210:197 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | kubotek.com (pri: 10) |
| TXT | 1 | v=spf1 a:www246b.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Mail Server Role
For kubotek.com, the mail server is kubotek.com.
IP Addresses
kubotek.com resolves to two IP numbers: 2403:3a00:106:2:219:94:210:197 and 219.94.210.197.
Other host names, for instance 197.210.94.219.static.www246b.sakura.ne.jp, share IP numbers with kubotek.com.
Name Servers
kubotek.com is delegated to three name servers master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
kubotek.com at least partially shares name servers with other domains, for instance renkozo.com, kurozumicare.com, piaa.co.jp, f-chousonkai.gr.jp and ohki.org.
these name servers are commonly used alongside dns.sakura.ad.jp.
Host names with one IP number: master.dns.ne.jp points to 210.224.172.18; ns1.dns.ne.jp points to 61.211.236.1; ns2.dns.ne.jp points to 133.167.21.1.
Mail Servers
kubotek.com is served by a single mail server, kubotek.com.
kubotek.com resolves to two IP numbers: 2403:3a00:106:2:219:94:210:197 and 219.94.210.197.