technical-ex.co.jp - robtex.com
technical-ex.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 163.43.87.228🇯🇵 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 | www3988.sakura.ne.jp | ||||||
| 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 | technical-ex.co.jp ⭐ | ||||||
| A | 163.43.87.228🇯🇵 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 | www3988.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www3988.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2019-03-25 #21 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
MX for
technical-ex.co.jp |
Same first word
technical-ex.co.jp |
DNS History
5 records (5 active, 0 former)
●MXtechnical-ex.co.jp2019-12-13 → 2026-05-13 · 2 obs
● 2026-05-13 05:22:46
●A163.43.87.2282019-12-13 → 2026-05-13 · 2 obs
● 2026-05-13 05:22:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | g.dns.jp, d.dns.jp, c.dns.jp, f.dns.jp... | - |
| technical-ex.co.jp | ns1.dns.ne.jp, ns2.dns.ne.jp | 2 records |
✅ 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 technical-ex.co.jp (unsigned zone)
⏱️ Timing
Total: 2065ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 163.43.87.228 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | technical-ex.co.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www3988.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.dns.ne.jp, ns1.dns.ne.jp)
Analysis
Mail Server Role
technical-ex.co.jp serves as the mail server for technical-ex.co.jp.
IP Addresses
technical-ex.co.jp resolves to a single IP address: 163.43.87.228.
Other host names including systemfab.sakura.ne.jp, info-gate.co.jp, nayamisodan.net, sakataphoto.com and prs-company.com share IP numbers with technical-ex.co.jp.
Name Servers
technical-ex.co.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
technical-ex.co.jp at least partially shares name servers with other domains, including wli.co.jp, cerca.jp, 5.4.0.0.1.2.1.0.3.5.1.0.6.0.1.1.2.0.1.0.2.4.e.0.1.0.0.2.ip6.arpa, nagomi-solutions.com and km-cp.co.jp.
These name servers are often used together with dns.sakura.ad.jp.
Hostnames with a single IP:
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
A single mail server handles technical-ex.co.jp.
technical-ex.co.jp points to a single IP: 163.43.87.228.