kusatsu.org - robtex.com
kusatsu.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.226.36.10🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | sv9.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 ⚠️ Not in parent delegation | ||||||
| A | 202.226.37.248🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | ns3.sixcore.ne.jp | ||||||
| MX | kusatsu.org ⭐ | ||||||
| A | 202.226.36.10🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc. | ||||||
| PTR | sv9.sixcore.ne.jp | ||||||
| TXT | v=spf1 +a:sv9.sixcore.ne.jp +a:kusatsu.org +mx include:spf.sender.xserver.jp ... | ||||||
| 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=1774684632 | ||||||
MX for
kusatsu.org |
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●NSns1.sixcore.ne.jp2015-06-08 → 2026-03-28 · 2 obs
● 2026-03-28 08:37:06
●NSns2.sixcore.ne.jp2015-06-08 → 2026-03-28 · 2 obs
● 2026-03-28 08:37:06
●NSns3.sixcore.ne.jp2015-06-08 → 2026-03-28 · 2 obs
● 2026-03-28 08:37:06
●MXkusatsu.org2015-06-08 → 2026-03-28 · 2 obs
● 2026-03-28 08:37:06
●A202.226.36.102026-02-16 → 2026-03-28 · 3 obs
● 2026-02-16 15:27:40
● 2026-03-28 08:37:06
○A219.94.200.102015-06-08 → 2020-03-11 · 4 obs
● 2020-03-11 15:12:30
○ 2026-02-16 15:27:40
○ 2026-03-28 08:37:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| kusatsu.org | ns2.sixcore.ne.jp, ns1.sixcore.ne.jp | - |
✅ Authoritative Response
Server:202.226.36.232
NS records: ns2.sixcore.ne.jp, ns1.sixcore.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kusatsu.org (unsigned zone)
⏱️ Timing
Total: 899ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.226.36.10 |
| NS | 3 | ns1.sixcore.ne.jp, ns3.sixcore.ne.jp... |
| MX | 1 | kusatsu.org (pri: 0) |
| TXT | 1 | v=spf1 +a:sv9.sixcore.ne.jp +a:kusatsu.o |
| SOA | 1 | ns1.sixcore.ne.jp root.sv0.sixcore.ne.jp |
Analysis
Mail Server Role
For kusatsu.org, the mail server is kusatsu.org.
IP Addresses
kusatsu.org points to a single IP number: 202.226.36.10.
other host names for instance colorata.co.jp, www.chusei-ds.com, tiptop.co.jp, sv9.sixcore.ne.jp and quma.info share IP numbers with kusatsu.org.
Name Servers
kusatsu.org is delegated to three name servers: ns1.sixcore.ne.jp, ns2.sixcore.ne.jp and ns3.sixcore.ne.jp.
kusatsu.org at least partially shares name servers with other domains, for instance pa-works.jp, pm-siken.com, more-selections.com, noah-fukaebashi.com and technos-jpschool.ac.jp.
Host names with one IP number:
ns1.sixcore.ne.jp points to 202.226.36.232.
ns2.sixcore.ne.jp points to 202.226.39.241.
ns3.sixcore.ne.jp points to 202.226.37.248.
Mail Servers
One mail server handles kusatsu.org.
Host name kusatsu.org points to IP address 202.226.36.10.