sprdev.jp - robtex.com
sprdev.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.94.128.12🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www802.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 | sprdev.jp ⭐ | ||||||
| A | 219.94.128.12🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www802.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www802.sakura.ne.jp mx ~allgoogle-site-verification=nSO3b7bCwQpmIMdl... | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2026-10-01 #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=1794375902 | ||||||
MX for
sprdev.jp |
Same first word
Similar names
Previous names
Next names
DNS History
5 records (5 active, 0 former)
●MXsprdev.jp2026-08-28 → 2026-11-11 · 2 obs
● 2026-11-11 06:12:38
●A219.94.128.122026-08-28 → 2026-11-11 · 2 obs
● 2026-11-11 06:12:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | 15 records |
| sprdev.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 sprdev.jp (unsigned zone)
⏱️ Timing
Total: 1084ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.94.128.12 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | sprdev.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www802.sakura.ne.jp mx ~allgoog |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 17
In-bailiwick: 15 (e.dns.jp, e.dns.jp, g.dns.jp...)
Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)
Analysis
Mail Server Role
sprdev.jp acts as its own mail server.
IP Addresses
sprdev.jp points to a single IP number: 219.94.128.12.
Additional host names — piano-maintenance.com, rife.online, kurinet.co.jp and two others — share IP numbers with sprdev.jp.
Name Servers
The authoritative name servers for sprdev.jp are master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp — three in total.
sprdev.jp partially shares its NS delegation with several other domains, including ivf-hokkaido.com, chida-shouten.co.jp, 7cf.jp and two others.
The hostnames master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp each resolve to a single IP: master.dns.ne.jp → 210.224.172.18, ns1.dns.ne.jp → 61.211.236.1, ns2.dns.ne.jp → 133.167.21.1.
Mail Servers
sprdev.jp has a single mail server: sprdev.jp itself.
sprdev.jp directs to just one IP number, 219.94.128.12.