koogawa.com - robtex.com
koogawa.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 175.41.251.136🇯🇵 Amazon175.41.192.0/18 Data Services Japan KK 11F Shibuya Cross Tower 2-15-1, Shibuya-ku Shibuya | ||||||
| PTR | ec2-175-41-251-136.ap-northeast-1.compute.amazonaws.com | ||||||
| NS | master.dns.ne.jp ⭐ | ||||||
| A | 210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | master.dns.ne.jp | ||||||
| NS | ns1.dns.ne.jp | ||||||
| A | 61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | ns1.dns.ne.jp | ||||||
| NS | ns2.dns.ne.jp | ||||||
| A | 133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | ns2.dns.ne.jp | ||||||
| MX | koogawa.com ⭐ | ||||||
| A | 175.41.251.136🇯🇵 Amazon175.41.192.0/18 Data Services Japan KK 11F Shibuya Cross Tower 2-15-1, Shibuya-ku Shibuya | ||||||
| PTR | ec2-175-41-251-136.ap-northeast-1.compute.amazonaws.com | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2020-10-21 #0 | ||||||
com
| 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=1777414256 | ||||||
MX for
koogawa.com |
Subdomains
blog.koogawa.com |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●MXkoogawa.com2015-06-12 → 2026-04-28 · 2 obs
● 2026-04-28 22:36:44
●A175.41.251.1362015-06-12 → 2026-04-28 · 2 obs
● 2026-04-28 22:36:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net... | - |
| koogawa.com | ns1.dns.ne.jp, ns2.dns.ne.jp | - |
✅ Authoritative Response
Server:133.167.21.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for koogawa.com (unsigned zone)
⏱️ Timing
Total: 393ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 175.41.251.136 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | koogawa.com (pri: 10) |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Hierarchy
The parent of blog.koogawa.com is koogawa.com.
Mail Server Role
koogawa.com serves as the mail server for koogawa.com.
IP Addresses
koogawa.com points to a single IP number: 175.41.251.136.
Other host names, for instance ec2-175-41-251-136.ap-northeast-1.compute.amazonaws.com, tetsuyaota.net and b-chan.jp share IP numbers with koogawa.com.
Name Servers
The domain koogawa.com is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
koogawa.com shares name servers with other domains at least partially, for instance barytonocafe.com, thoujinkai.jpn.org, eigonohiroba.jp, aaoi.biz and yamatogokin.com.
these name servers are often used together with the name servers dns.sakura.ad.jp.
Host names with a single IP number:
master.dns.ne.jp points to 210.224.172.18.
ns1.dns.ne.jp points to 61.211.236.1.
ns2.dns.ne.jp points to 133.167.21.1.
Mail Servers
A single mail server handles koogawa.com and koogawa.com.
Host name koogawa.com resolves to IP 175.41.251.136.