algorithmica.jp - robtex.com
algorithmica.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.181.97.95🇯🇵 SAKURA-B202.181.96.0/20 (6/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www285.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 | algorithmica.jp ⭐ | ||||||
| A | 202.181.97.95🇯🇵 SAKURA-B202.181.96.0/20 (6/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www285.sakura.ne.jp | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2024-11-04 #1 | ||||||
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=1788528603 | ||||||
MX for
algorithmica.jp |
Same first word
algorithmica.co.uk |
algorithmica.org |
algorithmica.com |
algorithmica.jp |
algorithmica.se |
algorithmica.pages.dev |
algorithmica.net |
algorithmica.eu |
algorithmica.de |
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DNS History
5 records (5 active, 0 former)
●MXalgorithmica.jp2015-07-15 → 2026-09-04 · 2 obs
● 2026-09-04 13:34:54
●A202.181.97.952015-07-15 → 2026-09-04 · 2 obs
● 2026-09-04 13:34:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | c.dns.jp, h.dns.jp, e.dns.jp, f.dns.jp... | - |
| algorithmica.jp | ns1.dns.ne.jp, ns2.dns.ne.jp | 2 records |
✅ Authoritative Response
Server:61.211.236.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for algorithmica.jp (unsigned zone)
⏱️ Timing
Total: 853ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.181.97.95 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | algorithmica.jp (pri: 10) |
| 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
algorithmica.jp handles its own mail, functioning as its own mail server.
IP Addresses
algorithmica.jp resolves to just one IP address, 202.181.97.95.
Two other host names, along with hisayama.org, studioam.org and milkygreen.sakura.ne.jp, also share IP numbers with algorithmica.jp.
Name Servers
algorithmica.jp carries NS records delegating to master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
algorithmica.jp partially shares its NS delegation with several other domains, including hinomaru.ed.jp, ikeuchi-law.gr.jp, jmrc-hokkaido.org and two others.
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
algorithmica.jp is served by just one mail server: algorithmica.jp.
algorithmica.jp carries a single IP number, which is 202.181.97.95.