cpuken.com - robtex.com
cpuken.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.198.220🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2980.sakura.ne.jp | ||||||
| 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 | cpuken.com ⭐ | ||||||
| A | 49.212.198.220🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2980.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www2980.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2023-11-09 #16 | ||||||
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=1776977781 | ||||||
MX for
cpuken.com |
Same first word
cpuken.com |
Similar names
DNS History
10 records (5 active, 5 former)
●NSmaster.dns.ne.jp2026-03-27 → 2026-04-23 · 3 obs
● 2026-03-27 11:07:46
● 2026-04-23 21:12:08
●NSns1.dns.ne.jp2026-03-27 → 2026-04-23 · 3 obs
● 2026-03-27 11:07:46
● 2026-04-23 21:12:08
○NSns10.nifty.ad.jp2015-07-02 → 2017-08-21 · 4 obs
● 2017-08-21 20:44:08
○ 2026-03-27 11:07:46
○ 2026-04-23 21:12:08
○NSns11.nifty.ad.jp2015-07-02 → 2017-08-21 · 4 obs
● 2017-08-21 20:44:08
○ 2026-03-27 11:07:46
○ 2026-04-23 21:12:08
●NSns2.dns.ne.jp2026-03-27 → 2026-04-23 · 3 obs
● 2026-03-27 11:07:46
● 2026-04-23 21:12:08
●MXcpuken.com2026-03-27 → 2026-04-23 · 3 obs
● 2026-03-27 11:07:46
● 2026-04-23 21:12:08
○MXmx.bizmail.nifty.com2015-07-02 → 2017-08-21 · 4 obs
● 2017-08-21 20:44:08
○ 2026-03-27 11:07:46
○ 2026-04-23 21:12:08
○A202.248.88.1432015-07-02 → 2016-06-12 · 4 obs
● 2016-06-12 22:22:50
○ 2016-12-01 15:17:02
○ 2026-04-23 21:12:08
○A210.131.2.312016-12-01 → 2017-08-21 · 5 obs
● 2016-12-01 15:17:02
● 2017-08-21 20:44:08
○ 2026-03-27 11:07:46
○ 2026-04-23 21:12:08
●A49.212.198.2202026-03-27 → 2026-04-23 · 3 obs
● 2026-03-27 11:07:46
● 2026-04-23 21:12:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cpuken.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 cpuken.com (unsigned zone)
⏱️ Timing
Total: 1115ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.198.220 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | cpuken.com (pri: 10) |
| TXT | 1 | v=spf1 a:www2980.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Mail Server Role
For cpuken.com, the mail server is cpuken.com.
IP Addresses
cpuken.com resolves to one IP number: 49.212.198.220.
other host names including hits.sakura.ne.jp, mizuyoukan.jp, sankoukai-fukuoka.or.jp, 9876543210.info and art-printsozai.net share IP numbers with cpuken.com.
Name Servers
cpuken.com is delegated to three name servers master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
cpuken.com at least partially shares name servers with other domains, for instance gjart.net, shurin.sakura.ne.jp, cuebest.com, hokuiku.org and kettya.com.
Host names with one 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
cpuken.com is served by a single mail server, cpuken.com.
cpuken.com resolves to IP 49.212.198.220.