system-server.org - dns.ninja
system-server.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.90.248.3🇯🇵 XSERVER-AS183.90.240.0/20 XSERVER Inc. | ||||||
| PTR | sv302.sixcore.ne.jp | ||||||
| NS | ns1.sixcore.ne.jp ⭐ | ||||||
| A | 202.226.36.232🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns1.sixcore.ne.jp | ||||||
| NS | ns2.sixcore.ne.jp | ||||||
| A | 202.226.39.241🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns2.sixcore.ne.jp | ||||||
| NS | ns3.sixcore.ne.jp | ||||||
| A | 202.226.37.248🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns3.sixcore.ne.jp | ||||||
| MX | system-server.org ⭐ | ||||||
| A | 183.90.248.3🇯🇵 XSERVER-AS183.90.240.0/20 XSERVER Inc. | ||||||
| PTR | sv302.sixcore.ne.jp | ||||||
| TXT | v=spf1 +a:sv302.sixcore.ne.jp +a:system-server.org +mx include:spf.sender.xse... | ||||||
| SOA | ns1.sixcore.ne.jproot@sv0.sixcore.ne.jp serial=0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1782634115 | ||||||
MX for
system-server.org |
Same first word
Similar names
server-system.org |
server-system.jp |
server-system.cz |
server-system.net |
server-system.info |
server-system.de |
server-system.com |
DNS History
5 records (5 active, 0 former)
●NSns1.sixcore.ne.jp2026-03-05 → 2026-06-28 · 2 obs
● 2026-06-28 08:45:22
●NSns2.sixcore.ne.jp2026-03-05 → 2026-06-28 · 2 obs
● 2026-06-28 08:45:22
●NSns3.sixcore.ne.jp2026-03-05 → 2026-06-28 · 2 obs
● 2026-06-28 08:45:22
●MXsystem-server.org2026-03-05 → 2026-06-28 · 2 obs
● 2026-06-28 08:45:22
●A183.90.248.32026-03-05 → 2026-06-28 · 2 obs
● 2026-06-28 08:45:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | d0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org | - |
| system-server.org | ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp | - |
✅ Authoritative Response
Server:202.226.36.232
NS records: ns1.sixcore.ne.jp, ns2.sixcore.ne.jp, ns3.sixcore.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for system-server.org (unsigned zone)
⏱️ Timing
Total: 1546ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.90.248.3 |
| NS | 3 | ns3.sixcore.ne.jp, ns1.sixcore.ne.jp... |
| MX | 1 | system-server.org (pri: 0) |
| TXT | 1 | v=spf1 +a:sv302.sixcore.ne.jp +a:system- |
| SOA | 1 | ns1.sixcore.ne.jp root.sv0.sixcore.ne.jp |
Analysis
Mail Server Role
system-server.org acts as its own mail server.
IP Addresses
system-server.org points to a single IP number: 183.90.248.3.
Additional host names — yourside.biz, komura.co.jp, dainichi5380.co.jp and two others — share IP numbers with system-server.org.
Name Servers
system-server.org is served by three name servers: ns1.sixcore.ne.jp, ns2.sixcore.ne.jp and ns3.sixcore.ne.jp.
system-server.org partially shares its NS delegation with several other domains, including transagent.co.jp, datahouse.co.jp, nobeoka-wh.com and two others.
ns1.sixcore.ne.jp has IP address 202.226.36.232, ns2.sixcore.ne.jp has IP address 202.226.39.241 and ns3.sixcore.ne.jp has IP address 202.226.37.248 — one address each.
Mail Servers
system-server.org has a single mail server: system-server.org itself.
system-server.org resolves to 183.90.248.3 and no other IP number.