comtech.jp - dns.ninja
comtech.jp
| DNSSEC | ⚠️ Not signed | ||||||
| NS | comtech.jp ⭐ | ||||||
| NS | dnss10.so-net.ne.jp | ||||||
| A | 210.139.255.1🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc. | ||||||
| PTR | dnss10.so-net.ne.jp | ||||||
| NS | dnss11.so-net.ne.jp | ||||||
| A | 210.139.255.17🇯🇵 So-net210.139.128.0/17 Sony Network Communications Inc. | ||||||
| PTR | dnss11.so-net.ne.jp | ||||||
| MX | sonet-common-mx.xspmail.jp ⭐ | ||||||
| A | 2001:240:bb81:94:160:13:60:174🇯🇵 IIJ-AS2001:240::/32 IIJ IPv6 BLOCK ( AS2497 ) | ||||||
| PTR | sonet-common-mx.xspmail.jp | ||||||
| A | 160.13.60.174🇯🇵 IIJ-AS160.13.0.0/16 IIJ IPv4 BLOCK ( AS2497 ) | ||||||
| PTR | sonet-common-mx.xspmail.jp | ||||||
| TXT | v=spf1 +include:plusdomain.spf.so-net.ne.jp ~all | ||||||
| SOA | comtech.jphostmaster@comtech.jp serial=2602171610 | ||||||
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=1785200402 | ||||||
NS for
comtech.jp |
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●NScomtech.jp2015-06-16 → 2026-07-28 · 2 obs
● 2026-07-28 01:38:46
●NSdnss10.so-net.ne.jp2015-06-16 → 2026-07-28 · 2 obs
● 2026-07-28 01:38:46
●NSdnss11.so-net.ne.jp2015-06-16 → 2026-07-28 · 2 obs
● 2026-07-28 01:38:46
○MXmxpin.ms.so-net.ne.jp2015-06-16 → 2017-04-11 · 4 obs
● 2017-04-11 22:18:08
○ 2026-07-24 00:19:48
○ 2026-07-28 01:38:46
●MXsonet-common-mx.xspmail.jp2026-07-24 → 2026-07-28 · 3 obs
● 2026-07-24 00:19:48
● 2026-07-28 01:38:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | c.dns.jp, h.dns.jp, a.dns.jp, b.dns.jp... | - |
| comtech.jp | dnss10.so-net.ne.jp, dnss11.so-net.ne.jp | - |
✅ Authoritative Response
Server:210.139.255.1
NS records: dnss10.so-net.ne.jp, dnss11.so-net.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for comtech.jp (unsigned zone)
⏱️ Timing
Total: 899ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dnss11.so-net.ne.jp, dnss10.so-net.ne.jp |
| MX | 1 | sonet-common-mx.xspmail.jp (pri: 10) |
| TXT | 1 | v=spf1 +include:plusdomain.spf.so-net.ne |
| SOA | 1 | comtech.jp hostmaster.comtech.jp |
Analysis
Name Server Role
The NS records for comtech.jp point back to comtech.jp itself.
dnss10.so-net.ne.jp and dnss11.so-net.ne.jp are often used as name servers in combination with comtech.jp.
Name Servers
comtech.jp delegates authority to three name servers — comtech.jp, dnss10.so-net.ne.jp and dnss11.so-net.ne.jp.
At least some of comtech.jp's name servers are shared with other domains, for example pals-net.co.jp, urt-c.net, yu-sei.jp and two more.
Each of dnss10.so-net.ne.jp and dnss11.so-net.ne.jp has one IP address: dnss10.so-net.ne.jp uses 210.139.255.1 and dnss11.so-net.ne.jp uses 210.139.255.17.
Mail Servers
The sole mail server for comtech.jp is sonet-common-mx.xspmail.jp.
Among the domains sharing a mail server setup with comtech.jp are largeport.jp, neographic.net, igarashi-sr.com and two others.
sonet-common-mx.xspmail.jp directs to two IP numbers, 160.13.60.174 and 2001:240:bb81:94:160:13:60:174.