kokubo-tk.com - robtex.com
kokubo-tk.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.198.61🇯🇵 AS937149.212.0.0/16 | ||||||
| PTR | www2851.sakura.ne.jp | ||||||
| NS | master.dns.ne.jp ⭐ | ||||||
| A | 210.224.172.18 | ||||||
| NS | ns1.dns.ne.jp | ||||||
| A | 61.211.236.1 | ||||||
| NS | ns2.dns.ne.jp | ||||||
| A | 133.167.21.1 | ||||||
| MX | kokubo-tk.com ⭐ | ||||||
| A | 49.212.198.61🇯🇵 AS937149.212.0.0/16 | ||||||
| PTR | www2851.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www2851.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2024-10-22 #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=1777355246 | ||||||
MX for
kokubo-tk.com |
Same first word
kokubo-tk.com |
DNS History
5 records (5 active, 0 former)
●MXkokubo-tk.com2015-05-21 → 2026-04-28 · 2 obs
● 2026-04-28 06:01:54
●A49.212.198.612015-05-21 → 2026-04-28 · 2 obs
● 2026-04-28 06:01:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, h.gtld-servers.net, j.gtld-servers.net, e.gtld-servers.net... | - |
| kokubo-tk.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 kokubo-tk.com (unsigned zone)
⏱️ Timing
Total: 3123ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.198.61 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | kokubo-tk.com (pri: 10) |
| TXT | 1 | v=spf1 a:www2851.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Mail Server Role
kokubo-tk.com serves as the mail server for kokubo-tk.com.
IP Addresses
kokubo-tk.com points to a single IP number: 49.212.198.61.
Other host names, for instance seikatsu-support.com, flat7th.sakura.ne.jp, taiwa-net.co.jp, gendaiheights.sakura.ne.jp and nyocc.com share IP numbers with kokubo-tk.com.
Name Servers
The domain kokubo-tk.com is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
kokubo-tk.com shares name servers with other domains at least partially, for instance rootf.co.jp, ootuka.net, aburaya-tousen.co.jp, mymime.sakura.ne.jp and rblossoms.com.
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 kokubo-tk.com and kokubo-tk.com.
Host name kokubo-tk.com resolves to IP 49.212.198.61.