k-3u.com - robtex.com
k-3u.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 160.251.123.98🇯🇵 GMO-INTERNET160.251.0.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | sv01.k3u.jp | ||||||
| NS | sv01.k3u.jp ⭐ | ||||||
| A | 160.251.123.98🇯🇵 GMO-INTERNET160.251.0.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | sv01.k3u.jp | ||||||
| NS | sv02.k3u.jp | ||||||
| A | 49.212.144.194🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | sv02.k3u.jp | ||||||
| MX | k-3u.com ⭐ | ||||||
| A | 160.251.123.98🇯🇵 GMO-INTERNET160.251.0.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | sv01.k3u.jp | ||||||
| TXT | v=spf1 ip4:160.251.123.98 a mx ~all | ||||||
| TXT | google-site-verification=iYX3Kw0emt5n0gD4awdu4nqHELUIYQiyJ6jfLY8ouho | ||||||
| SOA | sv01.k3u.jpinfo@k-3u.com 2022-09-22 #1 | ||||||
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=1771291435 | ||||||
MX for
k-3u.com |
Subdomains
www.k-3u.com |
Same first word
k-3u.com |
Similar names
DNS History
7 records (4 active, 3 former)
○NSns1.sunyou-net.jp2015-08-12 → 2017-02-07 · 3 obs
● 2017-02-07 15:56:06
○ 2026-03-24 12:10:42
○NSns2.sunyou-net.jp2015-08-12 → 2017-02-07 · 3 obs
● 2017-02-07 15:56:06
○ 2026-03-24 12:10:42
●MXk-3u.com2015-08-12 → 2026-03-24 · 2 obs
● 2026-03-24 12:10:42
○A153.122.24.502015-08-12 → 2017-02-07 · 3 obs
● 2017-02-07 15:56:06
○ 2026-03-24 12:10:42
●A160.251.123.982026-03-24 → 2026-03-24 · 2 obs
● 2026-03-24 12:10:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net... | - |
| k-3u.com | sv01.k3u.jp, sv02.k3u.jp | - |
✅ Authoritative Response
Server:160.251.123.98
NS records: sv01.k3u.jp, sv02.k3u.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for k-3u.com (unsigned zone)
⏱️ Timing
Total: 1030ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 160.251.123.98 |
| NS | 2 | sv02.k3u.jp, sv01.k3u.jp |
| MX | 1 | k-3u.com (pri: 10) |
| TXT | 2 | v=spf1 ip4:160.251.123.98 a mx ~all, google-site-verification=iYX3Kw0emt5n0gD |
| SOA | 1 | sv01.k3u.jp info.k-3u.com |
Analysis
Hierarchy
k-3u.com is the parent of www.k-3u.com.
Mail Server Role
k-3u.com is the mail server for k-3u.com.
IP Addresses
k-3u.com resolves to a single IP: 160.251.123.98.
Other host names, for instance kaimasu-kansai.com, co-cnt.com, k3u.jp, kagaen.com and sv01.k3u.jp share IP numbers with k-3u.com.
Name Servers
k-3u.com has two name servers: sv01.k3u.jp and sv02.k3u.jp.
k-3u.com shares the same name server setup as other domains, for example co-cnt.com, k3u.jp, miracle-ai.com, kagaen.com and ist-office.net.
Host names with a single IP:
sv01.k3u.jp points to 160.251.123.98
sv02.k3u.jp points to 49.212.144.194
Mail Servers
One mail server handles k-3u.com.
Host name k-3u.com points to IP 160.251.123.98.