mobile-u.jp - robtex.com
mobile-u.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.94.128.80🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www870.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 | mobile-u.jp ⭐ | ||||||
| A | 219.94.128.80🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www870.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www870.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2024-07-30 #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=1778407203 | ||||||
MX for
mobile-u.jp |
Same first word
Similar names
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u-mobile.com |
u-mobile.co.uk |
moul-bie.it |
u-mobile.info |
u-mobile.co.zw |
eu-mobil.de |
u-mobile.com.my |
u-mobile.us |
u-mobile.co |
u-mobile.my |
u-mobile.ru |
u-mobile.de |
DNS History
5 records (5 active, 0 former)
●MXmobile-u.jp2015-06-28 → 2026-05-10 · 2 obs
● 2026-05-10 10:31:46
●A219.94.128.802015-06-28 → 2026-05-10 · 2 obs
● 2026-05-10 10:31:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| mobile-u.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 mobile-u.jp (unsigned zone)
⏱️ Timing
Total: 903ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.94.128.80 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | mobile-u.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www870.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 mobile-u.jp, the mail server is mobile-u.jp.
IP Addresses
mobile-u.jp resolves to one IP number: 219.94.128.80.
other host names including www870.sakura.ne.jp, rentserv.com, parajp.com, mx-slk.kana.ne.jp and mbaa.d-ken.net share IP numbers with mobile-u.jp.
Name Servers
mobile-u.jp is delegated to three name servers master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
mobile-u.jp at least partially shares name servers with other domains, for instance tsuruo-printing.jp, sc-net.biz, eminal8370com.sakura.ne.jp, airspace.co.jp and autoparts-z.com.
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
mobile-u.jp is served by a single mail server, mobile-u.jp.
mobile-u.jp resolves to IP 219.94.128.80.