castcube.co.jp - robtex.com
castcube.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 160.16.109.112🇯🇵 SAKURA-B160.16.0.0/17 SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | castcube.co.jp | ||||||
| NS | ns1.gslb2.sakura.ne.jp ⭐ | ||||||
| A | 133.242.64.100🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | ns1.gslb2.sakura.ne.jp | ||||||
| NS | ns2.gslb2.sakura.ne.jp | ||||||
| A | 163.43.127.180🇯🇵 SAKURA-B163.43.0.0/16 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | ns2.gslb2.sakura.ne.jp | ||||||
| MX | castcube.co.jp ⭐ | ||||||
| A | 160.16.109.112🇯🇵 SAKURA-B160.16.0.0/17 SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | castcube.co.jp | ||||||
| TXT | v=spf1 +ip4:160.16.109.112 +ip4:119.245.139.136 +ip4:54.249.23.67 ~all | ||||||
| SOA | ns1.gslb2.sakura.ne.jpnoc@sakura.ad.jp serial=1 | ||||||
co.jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| 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 | ||||||
| TXT | co.jp. | ||||||
PTR for
MX for
castcube.co.jp |
Same first word
Similar names
scubatec.us |
scubatec.co.kr |
accubest.com |
scubatec.it |
buscatec.com |
scubatec.info |
scubatec.com.br |
buscatec.com.br |
accubets.com |
becactus.be |
stubecca.com |
scubatec.es |
scubatec.com.ve |
cubecast.com |
cubecast.tv |
scubatec.de |
DNS History
7 records (4 active, 3 former)
○NSns.castcube.co.jp2015-07-21 → 2018-10-27 · 4 obs
● 2018-10-27 12:54:46
○ 2026-02-22 10:45:14
○ 2026-03-18 05:17:28
●NSns1.gslb2.sakura.ne.jp2026-02-22 → 2026-03-18 · 3 obs
● 2026-02-22 10:45:14
● 2026-03-18 05:17:28
●NSns2.gslb2.sakura.ne.jp2026-02-22 → 2026-03-18 · 3 obs
● 2026-02-22 10:45:14
● 2026-03-18 05:17:28
○NSns4.sphere.ad.jp2015-07-21 → 2018-10-27 · 4 obs
● 2018-10-27 12:54:46
○ 2026-02-22 10:45:14
○ 2026-03-18 05:17:28
●MXcastcube.co.jp2015-07-21 → 2026-03-18 · 2 obs
● 2026-03-18 05:17:28
○A119.245.139.1362015-07-21 → 2018-10-27 · 4 obs
● 2018-10-27 12:54:46
○ 2026-02-22 10:45:14
○ 2026-03-18 05:17:28
●A160.16.109.1122026-02-22 → 2026-03-18 · 3 obs
● 2026-02-22 10:45:14
● 2026-03-18 05:17:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| castcube.co.jp | ns1.gslb2.sakura.ne.jp, ns2.gslb2.sakura.ne.jp | - |
✅ Authoritative Response
Server: 133.242.64.100
NS records: ns1.gslb2.sakura.ne.jp, ns2.gslb2.sakura.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for castcube.co.jp (unsigned zone)
⏱️ Timing
Total: 1764ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 160.16.109.112 |
| NS | 2 | ns2.gslb2.sakura.ne.jp, ns1.gslb2.sakura.ne.jp |
| MX | 1 | castcube.co.jp (pri: 10) |
| TXT | 1 | v=spf1 +ip4:160.16.109.112 +ip4:119.245. |
| SOA | 1 | ns1.gslb2.sakura.ne.jp noc.sakura.ad.jp |
Analysis
Mail Server Role
castcube.co.jp serves as the mail server for castcube.co.jp.
IP Addresses
castcube.co.jp resolves to a single IP address: 160.16.109.112.
Other host names, such as we-can.or.jp and mail.we-can.or.jp, share IP numbers with castcube.co.jp.
Name Servers
castcube.co.jp's delegation uses two name servers, ns1.gslb2.sakura.ne.jp and ns2.gslb2.sakura.ne.jp.
castcube.co.jp shares the same name server setup as other domains, for example haganeya.jp, lion-heads.com, saku-ra.com, surfersdiane.com and lavons.jp.
castcube.co.jp at least partially shares name servers with other domains, including omrc.jp, ca-mark.com, fukegroup.jp, rebyc.net and yumokin.jp.
Host names with a single IP:
ns1.gslb2.sakura.ne.jp points to 133.242.64.100.
ns2.gslb2.sakura.ne.jp points to 163.43.127.180.
Mail Servers
A single mail server handles castcube.co.jp.
castcube.co.jp points to a single IP: 160.16.109.112.