isystem.dev - robtex.com
isystem.dev
dev
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1 | ||||||
MX for
isystem.dev |
Same first word
Similar names
Previous names
Next names
DNS History
7 records (7 active, 0 former)
●NSns1.xserver.jp2026-09-26 → 2026-10-29 · 2 obs
● 2026-10-29 10:44:56
●NSns2.xserver.jp2026-09-26 → 2026-10-29 · 2 obs
● 2026-10-29 10:44:56
●NSns3.xserver.jp2026-09-26 → 2026-10-29 · 2 obs
● 2026-10-29 10:44:56
●NSns4.xserver.jp2026-09-26 → 2026-10-29 · 2 obs
● 2026-10-29 10:44:56
●NSns5.xserver.jp2026-09-26 → 2026-10-29 · 2 obs
● 2026-10-29 10:44:56
●MXisystem.dev2026-09-26 → 2026-10-29 · 2 obs
● 2026-10-29 10:44:56
●A162.43.121.442026-09-26 → 2026-10-29 · 2 obs
● 2026-10-29 10:44:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com... | - |
| isystem.dev | ns3.xserver.jp, ns5.xserver.jp, ns2.xserver.jp, ns4.xserver.jp... | - |
✅ Authoritative Response
Server:202.226.37.247
NS records: ns3.xserver.jp, ns5.xserver.jp, ns2.xserver.jp, ns4.xserver.jp, ns1.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for isystem.dev (unsigned zone)
⏱️ Timing
Total: 4205ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.43.121.44 |
| NS | 5 | ns5.xserver.jp, ns3.xserver.jp... |
| MX | 1 | isystem.dev (pri: 0) |
| TXT | 1 | v=spf1 +a:sv14243.xserver.jp +a:isystem. |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
Analysis
Mail Server Role
isystem.dev serves as a mail server for isystem.dev.
IP Addresses
isystem.dev has exactly one IP address — 162.43.121.44.
ics-mail.info, rh-daruma.com, mail.oumicha.jp plus two other host names have IP numbers in common with isystem.dev.
Name Servers
Five name servers handle delegation for isystem.dev: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
isystem.dev has at least partial name server overlap with other domains, such as hu-kyousou-hsc.jp, onimura-paid-member.com, pana-cut.com and two others.
It is common to see these name servers used together with name servers ns4.xserver.jp and ns5.xserver.jp.
Host names carrying three IP numbers:
ns1.xserver.jp has IP addresses 202.226.36.164, 202.226.36.170 and 202.226.36.246.
ns4.xserver.jp has IP addresses 183.90.224.226, 183.90.224.230 and 202.226.39.247.
ns5.xserver.jp has IP addresses 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Host names resolving to a single IP address:
ns2.xserver.jp directs to 35.72.43.26.
ns3.xserver.jp directs to 202.226.36.247.
Mail Servers
isystem.dev uses exactly one mail server, which is isystem.dev.
isystem.dev has exactly one IP number: 162.43.121.44.