kusatsu-lab.com - robtex.com
kusatsu-lab.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1785740627 | ||||||
MX for
kusatsu-lab.com |
Subdomains
www.kusatsu-lab.com |
Same first word
kusatsu-lab.com |
DNS History
8 records (7 active, 1 former)
●NSns1.xserver.jp2016-12-17 → 2026-08-03 · 2 obs
● 2026-08-03 07:11:36
●NSns2.xserver.jp2016-12-17 → 2026-08-03 · 2 obs
● 2026-08-03 07:11:36
●NSns3.xserver.jp2016-12-17 → 2026-08-03 · 2 obs
● 2026-08-03 07:11:36
●NSns4.xserver.jp2016-12-17 → 2026-08-03 · 2 obs
● 2026-08-03 07:11:36
●NSns5.xserver.jp2016-12-17 → 2026-08-03 · 2 obs
● 2026-08-03 07:11:36
●MXkusatsu-lab.com2016-12-17 → 2026-08-03 · 2 obs
● 2026-08-03 07:11:36
○A157.112.152.192016-12-17 → 2017-11-21 · 4 obs
● 2017-11-21 01:57:16
○ 2026-04-15 08:42:44
○ 2026-08-03 07:11:36
●A183.90.228.282026-04-15 → 2026-08-03 · 3 obs
● 2026-04-15 08:42:44
● 2026-08-03 07:11:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| kusatsu-lab.com | ns1.xserver.jp, ns2.xserver.jp | - |
✅ Authoritative Response
Server:35.72.43.26
NS records: ns1.xserver.jp, ns2.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kusatsu-lab.com (unsigned zone)
⏱️ Timing
Total: 944ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.90.228.28 |
| NS | 5 | ns5.xserver.jp, ns3.xserver.jp... |
| MX | 1 | kusatsu-lab.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv1127.xserver.jp +a:kusatsu-l |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
Analysis
Hierarchy
www.kusatsu-lab.com is delegated beneath kusatsu-lab.com.
Mail Server Role
kusatsu-lab.com handles its own mail, functioning as its own mail server.
IP Addresses
kusatsu-lab.com resolves to just one IP address, 183.90.228.28.
Two other host names, along with ebis-net.com, trust-exp.com and gekiyasu-lab.net, also share IP numbers with kusatsu-lab.com.
Name Servers
kusatsu-lab.com delegates to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
There is at least partial name server overlap between kusatsu-lab.com and other domains — saku-hana.jp, asachunet.co.jp, alplate.jp and two more among them.
These name servers frequently co-occur with the name servers ns4.xserver.jp and ns5.xserver.jp.
Hostnames that map to three IP numbers:
The hostname ns1.xserver.jp points to 202.226.36.164, 202.226.36.170 and 202.226.36.246.
The hostname ns4.xserver.jp points to 183.90.224.226, 183.90.224.230 and 202.226.39.247.
The hostname ns5.xserver.jp points to 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Host names that point to one IP address:
The hostname ns2.xserver.jp resolves to 35.72.43.26.
The hostname ns3.xserver.jp resolves to 202.226.36.247.
Mail Servers
kusatsu-lab.com is served by just one mail server: kusatsu-lab.com.
kusatsu-lab.com carries a single IP number, which is 183.90.228.28.