cu-com.net - robtex.com
cu-com.net
net
| 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=1781836705 | ||||||
MX for
cu-com.net |
Subdomains
www.cu-com.net |
Same first word
cu-com.net |
DNS History
9 records (7 active, 2 former)
●NSns1.xserver.jp2015-08-17 → 2026-06-19 · 2 obs
● 2026-06-19 02:57:22
●NSns2.xserver.jp2015-08-17 → 2026-06-19 · 2 obs
● 2026-06-19 02:57:22
●NSns3.xserver.jp2015-08-17 → 2026-06-19 · 2 obs
● 2026-06-19 02:57:22
●NSns4.xserver.jp2015-08-17 → 2026-06-19 · 2 obs
● 2026-06-19 02:57:22
●NSns5.xserver.jp2015-08-17 → 2026-06-19 · 2 obs
● 2026-06-19 02:57:22
●MXcu-com.net2015-08-17 → 2026-06-19 · 2 obs
● 2026-06-19 02:57:22
○A120.136.14.102015-08-17 → 2015-08-17 · 3 obs
○ 2015-09-19 15:30:46
○ 2026-06-19 02:57:22
●A183.90.237.912026-06-19 → 2026-06-19 · 3 obs
● 2026-06-19 02:57:20
● 2026-06-19 02:57:22
○A210.188.201.1932015-09-19 → 2017-01-22 · 5 obs
● 2015-09-19 15:30:46
● 2017-01-22 20:50:14
○ 2026-06-19 02:57:20
○ 2026-06-19 02:57:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cu-com.net | ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp... | - |
✅ Authoritative Response
Server:202.226.36.246
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 cu-com.net (unsigned zone)
⏱️ Timing
Total: 2636ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.90.237.91 |
| NS | 5 | ns3.xserver.jp, ns1.xserver.jp... |
| MX | 1 | cu-com.net (pri: 0) |
| TXT | 1 | v=spf1 +a:sv7250.xserver.jp +a:cu-com.ne |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
Analysis
Hierarchy
The domain www.cu-com.net falls under the parent cu-com.net.
Mail Server Role
cu-com.net is listed as a mail server for itself.
IP Addresses
cu-com.net resolves to one IP address: 183.90.237.91.
oda-pottery.co.jp, mx.paparatzinger.org, abc-mel.com and two other host names share IP numbers with cu-com.net.
Name Servers
cu-com.net has five name servers, which are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
At least some of cu-com.net's name servers are shared with other domains, for example pref-kochi.info, e-noguchi.co.jp, ferictele.com and two more.
These name servers tend to be deployed in combination with the name servers ns4.xserver.jp and ns5.xserver.jp.
Hostnames that resolve to three IP addresses:
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.
Hosts with just one IP address:
ns2.xserver.jp directs to 35.72.43.26.
ns3.xserver.jp directs to 202.226.36.247.
Mail Servers
Mail for cu-com.net is handled by one mail server — cu-com.net.
cu-com.net has exactly one IP number: 183.90.237.91.