plx.jp - robtex.com
plx.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 111.89.201.15 | ||||||
| NS | ns3.sphere.ad.jp ⭐ | ||||||
| NS | ns4.sphere.ad.jp | ||||||
| MX | plx.jp ⭐ | ||||||
| A | 111.89.201.15 | ||||||
| TXT | v=spf1 include:fmx.etius.jp +ip4:111.89.201.2/32 +ip4:111.89.201.15/32 -all | ||||||
| SOA | ns3.sphere.ad.jpdns@sphere.ad.jp serial=1576034176 | ||||||
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=1792117803 | ||||||
PTR for
MX for
plx.jp |
DNS History
4 records (4 active, 0 former)
●NSns3.sphere.ad.jp2015-08-02 → 2026-10-16 · 2 obs
● 2015-08-02 13:46:14
● 2026-10-16 03:03:40
● 2026-10-16 03:03:40
●NSns4.sphere.ad.jp2015-08-02 → 2026-10-16 · 2 obs
● 2015-08-02 13:46:14
● 2026-10-16 03:03:40
● 2026-10-16 03:03:40
●MXplx.jp2015-08-02 → 2026-10-16 · 2 obs
● 2015-08-02 13:46:14
● 2026-10-16 03:03:40
● 2026-10-16 03:03:40
●A111.89.201.152015-08-02 → 2026-10-16 · 2 obs
● 2015-08-02 13:46:14
● 2026-10-16 03:03:40
● 2026-10-16 03:03:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| plx.jp | ns4.sphere.ad.jp, ns3.sphere.ad.jp | - |
✅ Authoritative Response
Server:202.239.113.22
NS records: ns4.sphere.ad.jp, ns3.sphere.ad.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)
⏱️ Timing
Total: 1715ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 111.89.201.15 |
| NS | 2 | ns3.sphere.ad.jp, ns4.sphere.ad.jp |
| MX | 1 | plx.jp (pri: 10) |
| TXT | 1 | v=spf1 include:fmx.etius.jp +ip4:111.89. |
| SOA | 1 | ns3.sphere.ad.jp dns.sphere.ad.jp |
Analysis
Mail Server Role
The MX record for plx.jp points back to plx.jp — it is its own mail server.
IP Addresses
plx.jp directs to one IP number, which is 111.89.201.15.
Name Servers
The NS records for plx.jp delegate to ns3.sphere.ad.jp and ns4.sphere.ad.jp.
Mail Servers
The MX record for plx.jp points to a single mail server: plx.jp.
plx.jp resolves to 111.89.201.15 and no other IP number.