code-blue.jp - dns.ninja
code-blue.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.243.26🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www3516.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 | code-blue.jp ⭐ | ||||||
| A | 49.212.243.26🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www3516.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www3516.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2014-02-07 #12 | ||||||
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=1787013003 | ||||||
MX for
code-blue.jp |
Same first word
Similar names
Previous names
cocre.jp |
cocs.jp |
cocsun.jp |
cocteau.jp |
cocuu.jp |
cocyoo.jp |
coda-cj.jp |
coda.jp |
codachi.jp |
codamac.jp |
codata.jp |
codb.jp |
codc.jp |
coddle.jp |
code-9.jp |
code-and-design.jp |
code-aster.jp |
code-bike.jp |
code.jp |
Next names
DNS History
5 records (5 active, 0 former)
●MXcode-blue.jp2015-07-04 → 2026-08-18 · 2 obs
● 2026-08-18 00:48:50
●A49.212.243.262015-07-04 → 2026-08-18 · 2 obs
● 2026-08-18 00:48:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | c.dns.jp, h.dns.jp, e.dns.jp, b.dns.jp... | - |
| code-blue.jp | ns2.dns.ne.jp, ns1.dns.ne.jp | 2 records |
✅ Authoritative Response
Server:61.211.236.1
NS records: ns2.dns.ne.jp, ns1.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for code-blue.jp (unsigned zone)
⏱️ Timing
Total: 1605ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.243.26 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | code-blue.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www3516.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
code-blue.jp is listed as a mail server for itself.
IP Addresses
code-blue.jp resolves to one IP address: 49.212.243.26.
w-h.jp, tombow.net, ch-gender.sakura.ne.jp and two other host names share IP numbers with code-blue.jp.
Name Servers
code-blue.jp has three name servers — master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
code-blue.jp shares at least some of its name servers with other domains, including tam-vn.sakura.ne.jp, meguriba.com, fnf.jp and two others.
These name servers are frequently seen alongside the name servers dns.sakura.ad.jp.
Each of the three hostnames points to exactly one IP address: master.dns.ne.jp points to 210.224.172.18, ns1.dns.ne.jp points to 61.211.236.1 and ns2.dns.ne.jp points to 133.167.21.1.
Mail Servers
Mail for code-blue.jp is handled by one mail server — code-blue.jp.
code-blue.jp points to one IP number — 49.212.243.26.