programmingnote.jp - dns.ninja
programmingnote.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.94.129.237🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www1197.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 | programmingnote.jp ⭐ | ||||||
| A | 219.94.129.237🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www1197.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www1197.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2018-09-14 #10 | ||||||
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=1790546403 | ||||||
MX for
programmingnote.jp |
Same first word
programmingnote.com |
programmingnote.jp |
Previous names
Next names
DNS History
5 records (5 active, 0 former)
●MXprogrammingnote.jp2026-09-06 → 2026-09-27 · 2 obs
● 2026-09-27 22:43:18
●A219.94.129.2372026-09-06 → 2026-09-27 · 2 obs
● 2026-09-27 22:43:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | 15 records |
| programmingnote.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 programmingnote.jp (unsigned zone)
⏱️ Timing
Total: 1307ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.94.129.237 |
| NS | 2 | ns2.dns.ne.jp, ns1.dns.ne.jp |
| MX | 1 | programmingnote.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www1197.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 17
In-bailiwick: 15 (a.dns.jp, a.dns.jp, b.dns.jp...)
Out-of-bailiwick: 2 (ns2.dns.ne.jp, ns1.dns.ne.jp)
Analysis
Mail Server Role
programmingnote.jp handles its own mail, functioning as its own mail server.
IP Addresses
programmingnote.jp resolves to just one IP address, 219.94.129.237.
Two other host names, along with ichiba-net.com, genestear.com and m-tea.info, also share IP numbers with programmingnote.jp.
Name Servers
programmingnote.jp carries NS records delegating to master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
At least some of programmingnote.jp's name servers are shared with other domains, for example wswp-dev.com, hidamari-gohan.com, nissonet-recruit.jp and two more.
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 — each hostname maps to exactly one IP address.
Mail Servers
programmingnote.jp is served by just one mail server: programmingnote.jp.
programmingnote.jp carries a single IP number, which is 219.94.129.237.