zero-inc.co.jp - robtex.com
zero-inc.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.243.16🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www3506.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 | zero-inc.co.jp ⭐ | ||||||
| A | 49.212.243.16🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www3506.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www3506.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2017-12-05 #19 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
MX for
zero-inc.co.jp |
Same first word
zero-inc.co.jp |
Similar names
DNS History
5 records (5 active, 0 former)
●MXzero-inc.co.jp2019-12-13 → 2026-08-05 · 2 obs
● 2026-08-05 17:57:32
●A49.212.243.162019-12-13 → 2026-08-05 · 2 obs
● 2026-08-05 17:57:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | f.dns.jp, h.dns.jp, a.dns.jp, c.dns.jp... | - |
| zero-inc.co.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 zero-inc.co.jp (unsigned zone)
⏱️ Timing
Total: 1039ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.243.16 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | zero-inc.co.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www3506.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
The MX record for zero-inc.co.jp points back to zero-inc.co.jp — it is its own mail server.
IP Addresses
zero-inc.co.jp directs to one IP number, which is 49.212.243.16.
Among the host names that share IP numbers with zero-inc.co.jp are www3506.sakura.ne.jp, wakow.com, mail.s-gc.net and two others.
Name Servers
zero-inc.co.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
There is at least partial name server overlap between zero-inc.co.jp and other domains — ittsu.ne.jp, kamuj.net, sekinecpa.jp and two more among them.
master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp each resolve to a single IP address: master.dns.ne.jp resolves to 210.224.172.18, ns1.dns.ne.jp resolves to 61.211.236.1 and ns2.dns.ne.jp resolves to 133.167.21.1.
Mail Servers
The MX record for zero-inc.co.jp points to a single mail server: zero-inc.co.jp.
zero-inc.co.jp resolves to a single IP number: 49.212.243.16.