alpha-syss.jp - robtex.com
alpha-syss.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.181.99.18🇯🇵 SAKURA-B202.181.96.0/20 (6/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www298.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 | alpha-syss.jp ⭐ | ||||||
| A | 202.181.99.18🇯🇵 SAKURA-B202.181.96.0/20 (6/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www298.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www298.sakura.ne.jp mx include:spf.besender.jp ~all | ||||||
| TXT | google-site-verification=3yrfymHVtMBdUsgu84-822S723g9viPzmspy4NhdNDc | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2026-07-01 #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=1786435203 | ||||||
MX for
alpha-syss.jp |
Same first word
alpha-syss.jp |
DNS History
5 records (5 active, 0 former)
●MXalpha-syss.jp2026-05-17 → 2026-08-11 · 2 obs
● 2026-08-11 08:19:44
●A202.181.99.182026-05-17 → 2026-08-11 · 2 obs
● 2026-08-11 08:19:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| alpha-syss.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 alpha-syss.jp (unsigned zone)
⏱️ Timing
Total: 893ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.181.99.18 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | alpha-syss.jp (pri: 10) |
| TXT | 2 | v=spf1 a:www298.sakura.ne.jp mx include:, google-site-verification=3yrfymHVtMBdUsg |
| 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
alpha-syss.jp serves as a mail server for alpha-syss.jp.
IP Addresses
alpha-syss.jp has exactly one IP address — 202.181.99.18.
ginyama.com, atelier-shinya-miura.com, macworks.jpn.org plus two other host names have IP numbers in common with alpha-syss.jp.
Name Servers
alpha-syss.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
At least some of alpha-syss.jp's name servers are shared with other domains, for example vrstu.net, conciergeap.sakura.ne.jp, infonavi.info and two more.
master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp each resolve to a single IP address: master.dns.ne.jp resolves to 210.224.172.18, ns1.dns.ne.jp resolves to 61.211.236.1 and ns2.dns.ne.jp resolves to 133.167.21.1.
Mail Servers
alpha-syss.jp uses exactly one mail server, which is alpha-syss.jp.
alpha-syss.jp resolves to a single IP number: 202.181.99.18.