kasuya.jp - robtex.com
kasuya.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 112.78.125.29🇯🇵 SAKURA-C112.78.112.0/20 (4/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www529b.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 | kasuya.jp ⭐ | ||||||
| A | 112.78.125.29🇯🇵 SAKURA-C112.78.112.0/20 (4/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www529b.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www529b.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2026-07-24 #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=1785199502 | ||||||
MX for
kasuya.jp |
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
●NSmaster.dns.ne.jp2026-04-27 → 2026-07-28 · 3 obs
● 2026-04-27 08:53:54
● 2026-07-28 01:13:56
○NSns01.astem.co.jp2015-06-16 → 2017-05-16 · 4 obs
● 2017-05-16 05:00:56
○ 2026-04-27 08:53:54
○ 2026-07-28 01:13:56
●NSns1.dns.ne.jp2026-04-27 → 2026-07-28 · 3 obs
● 2026-04-27 08:53:54
● 2026-07-28 01:13:56
●NSns2.dns.ne.jp2026-04-27 → 2026-07-28 · 3 obs
● 2026-04-27 08:53:54
● 2026-07-28 01:13:56
●MXkasuya.jp2026-04-27 → 2026-07-28 · 3 obs
● 2026-04-27 08:53:54
● 2026-07-28 01:13:56
○MXmail.kasuya.jp2015-06-16 → 2017-05-16 · 4 obs
● 2017-05-16 05:00:56
○ 2026-04-27 08:53:54
○ 2026-07-28 01:13:56
●A112.78.125.292026-04-27 → 2026-07-28 · 2 obs
● 2026-07-28 01:13:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| kasuya.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 kasuya.jp (unsigned zone)
⏱️ Timing
Total: 911ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 112.78.125.29 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | kasuya.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www529b.sakura.ne.jp mx ~all |
| 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
kasuya.jp handles its own mail, functioning as its own mail server.
IP Addresses
kasuya.jp resolves to just one IP address, 112.78.125.29.
Two other host names, along with marimo946.com, chukaio.com and chukaiojp.sakura.ne.jp, also share IP numbers with kasuya.jp.
Name Servers
DNS for kasuya.jp is handled by three authoritative name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
kasuya.jp has at least partial name server overlap with other domains, such as apac-asia.com, kochi-nakaoka.jp, flower.x0.com and two others.
It is common to find these name servers paired with the name servers dns.sakura.ad.jp.
master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp all have one IP address each — master.dns.ne.jp directs to 210.224.172.18, ns1.dns.ne.jp directs to 61.211.236.1 and ns2.dns.ne.jp directs to 133.167.21.1.
Mail Servers
kasuya.jp is served by just one mail server: kasuya.jp.
kasuya.jp has exactly one IP number: 112.78.125.29.