k-contech.co.jp - robtex.com
k-contech.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 182.48.49.226🇯🇵 SAKURA-C182.48.0.0/18 (6/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2286.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 | k-contech.co.jp ⭐ | ||||||
| A | 182.48.49.226🇯🇵 SAKURA-C182.48.0.0/18 (6/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2286.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www2286.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2025-08-19 #1 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
MX for
k-contech.co.jp |
Same first word
k-contech.co.jp |
Similar names
DNS History
9 records (5 active, 4 former)
●NSmaster.dns.ne.jp2026-04-27 → 2026-05-12 · 3 obs
● 2026-04-27 08:14:40
● 2026-05-12 14:26:40
●NSns1.dns.ne.jp2026-04-27 → 2026-05-12 · 3 obs
● 2026-04-27 08:14:40
● 2026-05-12 14:26:40
○NSns1.k-contech.co.jp2018-05-17 → 2018-05-17 · 3 obs
○ 2026-04-27 08:14:40
○ 2026-05-12 14:26:40
●NSns2.dns.ne.jp2026-04-27 → 2026-05-12 · 3 obs
● 2026-04-27 08:14:40
● 2026-05-12 14:26:40
○NSns2.k-contech.co.jp2018-05-17 → 2018-05-17 · 3 obs
○ 2026-04-27 08:14:40
○ 2026-05-12 14:26:40
●MXk-contech.co.jp2026-04-27 → 2026-05-12 · 3 obs
● 2026-04-27 08:14:40
● 2026-05-12 14:26:40
○MXsmtp.k-contech.co.jp2018-05-17 → 2018-05-17 · 3 obs
○ 2026-04-27 08:14:40
○ 2026-05-12 14:26:40
○MXsmtp2.k-contech.co.jp2018-05-17 → 2018-05-17 · 3 obs
○ 2026-04-27 08:14:40
○ 2026-05-12 14:26:40
●A182.48.49.2262026-04-27 → 2026-05-12 · 2 obs
● 2026-05-12 14:26:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | d.dns.jp, f.dns.jp, h.dns.jp, a.dns.jp... | - |
| k-contech.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 k-contech.co.jp (unsigned zone)
⏱️ Timing
Total: 567ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 182.48.49.226 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | k-contech.co.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www2286.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)
Analysis
Mail Server Role
k-contech.co.jp serves as a mail server for k-contech.co.jp.
IP Addresses
k-contech.co.jp points to a single IP: 182.48.49.226.
Other host names, for instance gluee.co.jp, jdic.jp, harada-educate.jp, sic-office.com and athlete-links.com share IP numbers with k-contech.co.jp.
Name Servers
k-contech.co.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
k-contech.co.jp partially shares name servers with other domains; examples include coderdojo-chiba.sakura.ne.jp, zero1.ne.jp, akiba-home.sakura.ne.jp, soi.ne.jp and olive-dental.com.
Host names with one IP number:
Host master.dns.ne.jp points to 210.224.172.18.
Host ns1.dns.ne.jp points to 61.211.236.1.
Host ns2.dns.ne.jp points to 133.167.21.1.
Mail Servers
k-contech.co.jp is handled by a single mail server, k-contech.co.jp.
k-contech.co.jp points to a single IP: 182.48.49.226.