dev.ffffff.jp - robtex.com
dev.ffffff.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.94.162.214🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www1374.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 ⚠️ Not in parent delegation | ||||||
| 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 ⚠️ Not in parent delegation | ||||||
| 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 | dev.ffffff.jp ⭐ | ||||||
| A | 219.94.162.214🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www1374.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www1374.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2017-05-22 #17 | ||||||
ffffff.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.94.162.214🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| NS | master.dns.ne.jp ⭐ | ||||||
| NS | ns1.dns.ne.jp | ||||||
| NS | ns2.dns.ne.jp | ||||||
| MX | ffffff.jp ⭐ | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2007-12-13 #21 | ||||||
MX for
dev.ffffff.jp |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●MXdev.ffffff.jp2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 03:10:12
●A219.94.162.2142026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 03:10:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| ffffff.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 ffffff.jp (unsigned zone)
⏱️ Timing
Total: 1326ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.94.162.214 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | dev.ffffff.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www1374.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
For dev.ffffff.jp, the mail server is dev.ffffff.jp.
IP Addresses
dev.ffffff.jp resolves to one IP number: 219.94.162.214.
other host names including naoki.me, suga-jinja.or.jp, prolatio.net, atago-karuizawa.jp and sushi-atago.jp share IP numbers with dev.ffffff.jp.
Name Servers
dev.ffffff.jp is delegated to three name servers master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
dev.ffffff.jp at least partially shares name servers with other domains, for instance axis-k.com, jsmn.jp, akeru.info, kaitori.audio and gotooffice.co.jp.
these name servers are commonly used alongside dns.sakura.ad.jp.
Host names with one IP number: 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.
Mail Servers
dev.ffffff.jp is served by a single mail server, dev.ffffff.jp.
dev.ffffff.jp resolves to IP 219.94.162.214.