zero4.jp - dns.ninja
zero4.jp
| DNSSEC | ⚠️ Not signed | ||||||
| NS | zero4.jp ⭐ | ||||||
| NS | dnss10.so-net.ne.jp | ||||||
| A | 210.139.255.1🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc. | ||||||
| PTR | dnss10.so-net.ne.jp | ||||||
| NS | dnss11.so-net.ne.jp | ||||||
| A | 210.139.255.17🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc. | ||||||
| PTR | dnss11.so-net.ne.jp | ||||||
| MX | sonet-common-mx.xspmail.jp ⭐ | ||||||
| A | 2001:240:bb81:94:160:13:60:174🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 ) | ||||||
| PTR | sonet-common-mx.xspmail.jp | ||||||
| A | 160.13.60.174🇯🇵 IIJ-AS160.13.0.0/16 IIJ IPv4 BLOCK ( AS2497 ) | ||||||
| PTR | sonet-common-mx.xspmail.jp | ||||||
| TXT | v=spf1 +include:plusdomain.spf.so-net.ne.jp ~all | ||||||
| SOA | zero4.jphostmaster@zero4.jp serial=2602171610 | ||||||
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=1781991003 | ||||||
NS for
zero4.jp |
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSdnss10.so-net.ne.jp2026-05-13 → 2026-06-20 · 2 obs
● 2026-06-20 22:04:22
●NSdnss11.so-net.ne.jp2026-05-13 → 2026-06-20 · 2 obs
● 2026-06-20 22:04:22
●NSzero4.jp2026-05-13 → 2026-06-20 · 2 obs
● 2026-06-20 22:04:22
●MXsonet-common-mx.xspmail.jp2026-05-13 → 2026-06-20 · 2 obs
● 2026-06-20 22:04:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | h.dns.jp, a.dns.jp, d.dns.jp, g.dns.jp... | - |
| zero4.jp | dnss11.so-net.ne.jp, dnss10.so-net.ne.jp | - |
✅ Authoritative Response
Server:210.139.255.1
NS records: dnss11.so-net.ne.jp, dnss10.so-net.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for zero4.jp (unsigned zone)
⏱️ Timing
Total: 3123ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dnss10.so-net.ne.jp, dnss11.so-net.ne.jp |
| MX | 1 | sonet-common-mx.xspmail.jp (pri: 10) |
| TXT | 1 | v=spf1 +include:plusdomain.spf.so-net.ne |
| SOA | 1 | zero4.jp hostmaster.zero4.jp |
Analysis
Name Server Role
zero4.jp has zero4.jp as one of its name servers, making it self-hosted for DNS delegation.
dnss10.so-net.ne.jp, dnss11.so-net.ne.jp and zero4.jp are commonly seen together as name servers.
Name Servers
The DNS delegation for zero4.jp uses three name servers — zero4.jp, dnss10.so-net.ne.jp and dnss11.so-net.ne.jp.
The name servers of zero4.jp overlap at least partially with those of other domains — among them gontakun.org, may-be.jp, m-kanou.com and two more.
Both dnss10.so-net.ne.jp and dnss11.so-net.ne.jp have a single IP address each — dnss10.so-net.ne.jp resolves to 210.139.255.1 while dnss11.so-net.ne.jp resolves to 210.139.255.17.
Mail Servers
zero4.jp routes its mail through a single mail server, sonet-common-mx.xspmail.jp.
zero4.jp has the same mail server arrangement as a number of other domains, for example keing.jp, koten-sakaba.com, ya-print.com and two more.
sonet-common-mx.xspmail.jp resolves to two IP numbers — 160.13.60.174 and 2001:240:bb81:94:160:13:60:174.