ph21.jp - robtex.com
ph21.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.94.129.59🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www1049.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 | ph21.jp ⭐ | ||||||
| A | 219.94.129.59🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www1049.sakura.ne.jp | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2007-03-12 #15 | ||||||
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=1785040202 | ||||||
MX for
ph21.jp |
Same first word
Similar names
21ph.com |
12hp.jp |
12hp.at |
12hp.ch |
hp21.de |
hp21.jp |
hp12.co.uk |
hp12.com |
1p2h.com |
12hp.de |
12ph.com |
12hp.com |
hp21.cn |
21ph.cn |
hp21.org |
hp12.de |
21hp.com |
hp12.jp |
DNS History
5 records (5 active, 0 former)
●MXph21.jp2015-07-07 → 2026-07-26 · 2 obs
● 2026-07-26 05:13:12
●A219.94.129.592015-07-07 → 2026-07-26 · 2 obs
● 2026-07-26 05:13:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, f.dns.jp, g.dns.jp, h.dns.jp... | - |
| ph21.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 ph21.jp (unsigned zone)
⏱️ Timing
Total: 1962ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.94.129.59 |
| NS | 2 | ns2.dns.ne.jp, ns1.dns.ne.jp |
| MX | 1 | ph21.jp (pri: 10) |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.dns.ne.jp, ns1.dns.ne.jp)
Analysis
Mail Server Role
ph21.jp acts as its own mail server.
IP Addresses
ph21.jp points to a single IP number: 219.94.129.59.
Additional host names — munakata-shikou.sakura.ne.jp, forward-ac.com, khsaa.sakura.ne.jp and two others — share IP numbers with ph21.jp.
Name Servers
DNS for ph21.jp is handled by three authoritative name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
The name servers of ph21.jp overlap at least partially with those of other domains — among them miharashi.jkokusai.com, powers-akita.sakura.ne.jp, pc-dao.com and two more.
These name servers commonly appear in combination 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
ph21.jp has a single mail server: ph21.jp itself.
ph21.jp has exactly one IP number: 219.94.129.59.