blue-tech.jp - robtex.com
blue-tech.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.180.236🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2796.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 | blue-tech.jp ⭐ | ||||||
| A | 49.212.180.236🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2796.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www2796.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2015-03-13 #2 | ||||||
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| 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 | ||||||
| SOA | z.dns.jproot@dns.jp serial=1774617302 | ||||||
MX for
blue-tech.jp |
Same first word
blue-tech.fr |
blue-tech.pl |
blue-tech.jp |
blue-tech.de |
blue-tech.eu |
blue-tech.nl |
blue-tech.ch |
blue-tech.com |
blue-tech.biz |
Similar names
DNS History
5 records (5 active, 0 former)
●MXblue-tech.jp2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 13:23:06
●A49.212.180.2362026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 13:23:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| blue-tech.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 blue-tech.jp (unsigned zone)
⏱️ Timing
Total: 733ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.180.236 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | blue-tech.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www2796.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
For blue-tech.jp, the mail server is blue-tech.jp.
IP Addresses
blue-tech.jp points to a single IP number: 49.212.180.236.
other host names for instance mizuho-style.jp, aikaze.co.jp, gsm.or.jp, hanamomo.info and bun-e.jp share IP numbers with blue-tech.jp.
Name Servers
blue-tech.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
blue-tech.jp at least partially shares name servers with other domains, for instance harita.jp, nemoto.co.jp, oramachi.com, buto.sakura.ne.jp and tanaka-inc.jp.
These name servers are commonly used with the name servers 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
One mail server handles blue-tech.jp.
Host name blue-tech.jp points to IP address 49.212.180.236.