ridc.co.jp - robtex.com
ridc.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| NS | localhost.ridc.co.jp ⭐ | ||||||
| NS | s-field1.sunfield.ne.jp | ||||||
| A | 202.213.33.130🇯🇵 SunField202.213.32.0/20 Internet,AS23785 | ||||||
| PTR | s-field1.sunfield.ne.jp | ||||||
| NS | s-field3.sunfield.ne.jp | ||||||
| A | 202.213.33.133🇯🇵 SunField202.213.32.0/20 Internet,AS23785 | ||||||
| PTR | s-field3.sunfield.ne.jp | ||||||
| MX | rsdcml01.ridc.co.jp ⭐ | ||||||
| A | 202.213.43.211🇯🇵 SunField202.213.32.0/20 Internet,AS23785 | ||||||
| PTR | rsdcml01.ridc.co.jp | ||||||
| MX | rsdcml02.ridc.co.jp(20) | ||||||
| A | 202.213.43.215🇯🇵 SunField202.213.32.0/20 Internet,AS23785 | ||||||
| PTR | rsdcml02.ridc.co.jp | ||||||
| TXT | v=spf1 +ip4:202.213.33.0/24 +ip4:202.213.43.208/28 +ip4:202.213.37.37/32 ~all | ||||||
| SOA | localhost.ridc.co.jproot@ridc.co.jp 2025-04-15 #2 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
Subdomains
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●NSlocalhost.ridc.co.jp2017-04-18 → 2026-07-03 · 2 obs
● 2026-07-03 16:26:50
●NSs-field1.sunfield.ne.jp2017-04-18 → 2026-07-03 · 2 obs
● 2026-07-03 16:26:50
●NSs-field3.sunfield.ne.jp2017-04-18 → 2026-07-03 · 2 obs
● 2026-07-03 16:26:50
○MXpost.sunfield.ne.jp2017-04-18 → 2017-04-18 · 3 obs
○ 2026-07-01 12:05:48
○ 2026-07-03 16:26:50
●MXrsdcml01.ridc.co.jp2026-07-01 → 2026-07-03 · 3 obs
● 2026-07-01 12:05:48
● 2026-07-03 16:26:50
●MXrsdcml02.ridc.co.jp2026-07-01 → 2026-07-03 · 3 obs
● 2026-07-01 12:05:48
● 2026-07-03 16:26:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| ridc.co.jp | s-field3.sunfield.ne.jp, s-field1.sunfield.ne.jp | 2 records |
✅ Authoritative Response
Server:202.213.33.133
NS records: s-field3.sunfield.ne.jp, s-field1.sunfield.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ridc.co.jp (unsigned zone)
⏱️ Timing
Total: 790ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | s-field3.sunfield.ne.jp, s-field1.sunfield.ne.jp |
| MX | 2 | RSDCML02.ridc.co.jp (pri: 20), RSDCML01.ridc.co.jp (pri: 10) |
| TXT | 1 | v=spf1 +ip4:202.213.33.0/24 +ip4:202.213 |
| SOA | 1 | localhost.ridc.co.jp root.ridc.co.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (s-field1.sunfield.ne.jp, s-field3.sunfield.ne.jp)
Analysis
Hierarchy
The parent domain of rsdcml01.ridc.co.jp and rsdcml02.ridc.co.jp is ridc.co.jp.
Name Servers
ridc.co.jp is delegated to three name servers: localhost.ridc.co.jp, s-field1.sunfield.ne.jp and s-field3.sunfield.ne.jp.
There is at least partial name server overlap between ridc.co.jp and other domains — 162.167.115.in-addr.arpa, 140.167.115.in-addr.arpa, asp-gas.jp and two more among them.
These name servers regularly appear alongside dns05.sunfield.ne.jp, dns06.sunfield.ne.jp, ns.sunfield-i.net and 3 other name servers in NS record sets.
s-field1.sunfield.ne.jp → 202.213.33.130 and s-field3.sunfield.ne.jp → 202.213.33.133: one IP number per host name.
Mail Servers
The MX records for ridc.co.jp point to two mail servers: rsdcml01.ridc.co.jp and rsdcml02.ridc.co.jp.
rsdcml01.ridc.co.jp → 202.213.43.211 and rsdcml02.ridc.co.jp → 202.213.43.215: one IP number per host name.