kasuga-office.com - robtex.com
kasuga-office.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=1774847162 | ||||||
Subdomains
mail.kasuga-office.com |
DNS History
10 records (7 active, 3 former)
●NSns1.xserver.jp2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 05:13:20
○NSns2.dnsdun.com2020-02-18 → 2020-02-18 · 2 obs
○ 2026-03-30 05:13:20
○NSns2.dnsdun.net2020-02-18 → 2020-02-18 · 2 obs
○ 2026-03-30 05:13:20
●NSns2.xserver.jp2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 05:13:20
●NSns3.xserver.jp2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 05:13:20
●NSns4.xserver.jp2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 05:13:20
●NSns5.xserver.jp2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 05:13:20
●MXkasuga-office.com2026-03-30 → 2026-03-30 · 1 obs
○A154.89.106.792020-02-18 → 2020-02-18 · 2 obs
○ 2026-03-30 05:13:20
●A162.43.121.122026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 05:13:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net... | - |
| kasuga-office.com | ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp... | - |
✅ Authoritative Response
Server:183.90.224.230
NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kasuga-office.com (unsigned zone)
⏱️ Timing
Total: 1099ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.43.121.12 |
| NS | 5 | ns5.xserver.jp, ns2.xserver.jp... |
| MX | 1 | kasuga-office.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv14211.xserver.jp +a:kasuga-o |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
Analysis
Hierarchy
kasuga-office.com is the parent of mail.kasuga-office.com.
IP Addresses
kasuga-office.com points to IP number 162.43.121.12.
For instance, other host names mail.e-sentan.com, ioriya.net, mail.kasuga-office.com, drtours.info and naraaisai.com share IP numbers with kasuga-office.com.
Name Servers
kasuga-office.com is delegated to five name servers: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp and ns5.xserver.jp.
kasuga-office.com shares name servers with other domains at least partially, for example stratcast.jp, shionari.com, seascape-bike.com, mizuo-clinic.com and tokyogirlsupdate.com.
Host names with three IP numbers:
ns1.xserver.jp points to: 202.226.36.164, 202.226.36.170 and 202.226.36.246.
ns4.xserver.jp points to: 183.90.224.226, 183.90.224.230 and 202.226.39.247.
ns5.xserver.jp points to: 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Host names with one IP number:
ns2.xserver.jp points to: 35.72.43.26.
ns3.xserver.jp points to: 202.226.36.247.
Mail Servers
kasuga-office.com is handled by a single mail server, kasuga-office.com.
kasuga-office.com points to a single IP: 162.43.121.12.