comtrek.jp - robtex.com
comtrek.jp
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1785814202 | ||||||
Subdomains
mail.comtrek.jp |
Same first word
Similar names
DNS History
8 records (7 active, 1 former)
●NSns1.linode.com2015-07-20 → 2026-08-04 · 2 obs
● 2026-08-04 03:35:32
●NSns2.linode.com2015-07-20 → 2026-08-04 · 2 obs
● 2026-08-04 03:35:32
●NSns3.linode.com2015-07-20 → 2026-08-04 · 2 obs
● 2026-08-04 03:35:32
●NSns4.linode.com2015-07-20 → 2026-08-04 · 2 obs
● 2026-08-04 03:35:32
●NSns5.linode.com2015-07-20 → 2026-08-04 · 2 obs
● 2026-08-04 03:35:32
●MXmail.comtrek.jp2015-07-20 → 2026-08-04 · 2 obs
● 2026-08-04 03:35:32
○A106.187.39.1912015-07-20 → 2017-04-07 · 4 obs
● 2017-04-07 20:38:46
○ 2026-06-23 02:49:06
○ 2026-08-04 03:35:32
●A139.162.83.1582026-06-23 → 2026-08-04 · 3 obs
● 2026-06-23 02:49:06
● 2026-08-04 03:35:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, d.dns.jp, g.dns.jp, h.dns.jp... | - |
| comtrek.jp | ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com... | - |
✅ Authoritative Response
Server:92.123.95.4
NS records: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com, ns5.linode.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for comtrek.jp (unsigned zone)
⏱️ Timing
Total: 933ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 139.162.83.158 |
| NS | 5 | ns2.linode.com, ns3.linode.com... |
| MX | 1 | mail.comtrek.jp (pri: 10) |
| TXT | 1 | v=spf1 ip4:49.212.180.240 -all |
| SOA | 1 | ns1.linode.com syama.giga.ocn.ne.jp |
Analysis
Hierarchy
mail.comtrek.jp is a subdomain of comtrek.jp.
IP Addresses
comtrek.jp directs to one IP number, which is 139.162.83.158.
reracise.com, comtrek-server.com, comtrek.org and charon.comtrek-server.com are among the host names that share IP numbers with comtrek.jp.
Name Servers
The authoritative name servers for comtrek.jp are ns1.linode.com, ns2.linode.com, ns3.linode.com and two others.
The name servers of comtrek.jp overlap at least partially with those of other domains — among them ausawiregrass.org, aylakkarga.com, brettbartholomew.com and two more.
These name servers commonly appear alongside the name servers ns4.linode.com and ns5.linode.com.
Hosts with two IP numbers each:
ns1.linode.com resolves to 92.123.94.2 and 2600:14c0:6::2.
ns2.linode.com resolves to 92.123.94.3 and 2600:14c0:6::3.
ns3.linode.com resolves to 92.123.95.3 and 2600:14c0:7::3.
ns4.linode.com resolves to 92.123.95.4 and 2600:14c0:7::4.
ns5.linode.com resolves to 92.123.95.2 and 2600:14c0:7::2.
Mail Servers
comtrek.jp routes its mail through a single mail server, mail.comtrek.jp.
mail.comtrek.jp points to one IP number — 49.212.180.240.