cko.co.jp - robtex.com
cko.co.jp
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
MX for
cko.co.jp |
Same first word
Similar names
DNS History
7 records (7 active, 0 former)
●NSns1.xserver.jp2018-06-27 → 2026-07-30 · 2 obs
● 2026-07-30 08:09:44
●NSns2.xserver.jp2018-06-27 → 2026-07-30 · 2 obs
● 2026-07-30 08:09:44
●NSns3.xserver.jp2018-06-27 → 2026-07-30 · 2 obs
● 2026-07-30 08:09:44
●NSns4.xserver.jp2018-06-27 → 2026-07-30 · 2 obs
● 2026-07-30 08:09:44
●NSns5.xserver.jp2018-06-27 → 2026-07-30 · 2 obs
● 2026-07-30 08:09:44
●MXcko.co.jp2018-06-27 → 2026-07-30 · 2 obs
● 2026-07-30 08:09:44
●A120.136.10.342018-06-27 → 2026-07-30 · 2 obs
● 2026-07-30 08:09:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| cko.co.jp | ns1.xserver.jp, ns2.xserver.jp | 4 records |
✅ Authoritative Response
Server:35.72.43.26
NS records: ns1.xserver.jp, ns2.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cko.co.jp (unsigned zone)
⏱️ Timing
Total: 4090ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 120.136.10.34 |
| NS | 5 | ns3.xserver.jp, ns4.xserver.jp... |
| MX | 1 | cko.co.jp (pri: 0) |
| TXT | 1 | v=spf1 +a:sv533.xserver.jp +a:cko.co.jp |
| SOA | 1 | ns1.xserver.jp root.sv0.xserver.jp |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.xserver.jp, ns1.xserver.jp, ns1.xserver.jp...)
Analysis
Mail Server Role
cko.co.jp is listed as a mail server for itself.
IP Addresses
cko.co.jp resolves to one IP address: 120.136.10.34.
nectardei.xsrv.jp, freeedge.jp, hayaden.net and two other host names share IP numbers with cko.co.jp.
Name Servers
cko.co.jp has five name servers, which are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
The name servers of cko.co.jp overlap at least partially with those of other domains — among them kby00.com, itokosaku.com, shon.jp and two more.
These name servers commonly appear alongside the name servers ns4.xserver.jp and ns5.xserver.jp.
Hostnames that resolve to three IP addresses:
The hostname ns1.xserver.jp directs to 202.226.36.164, 202.226.36.170 and 202.226.36.246.
The hostname ns4.xserver.jp directs to 183.90.224.226, 183.90.224.230 and 202.226.39.247.
The hostname ns5.xserver.jp directs to 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Hosts with just one IP address:
ns2.xserver.jp has the IP address 35.72.43.26.
ns3.xserver.jp has the IP address 202.226.36.247.
Mail Servers
Mail for cko.co.jp is handled by one mail server — cko.co.jp.
cko.co.jp directs to just one IP number, 120.136.10.34.