duo-k.com - robtex.com
duo-k.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.207.93🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www3083.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 | duo-k.com ⭐ | ||||||
| A | 49.212.207.93🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www3083.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www3083.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2024-06-28 #2 | ||||||
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=1778426721 | ||||||
MX for
duo-k.com |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSmaster.dns.ne.jp2015-05-09 → 2026-05-10 · 3 obs
● 2015-05-09 01:03:36
● 2026-05-10 15:53:28
●NSns1.dns.ne.jp2015-05-09 → 2026-05-10 · 3 obs
● 2015-05-09 01:03:36
● 2026-05-10 15:53:28
●NSns2.dns.ne.jp2015-05-09 → 2026-05-10 · 3 obs
● 2015-05-09 01:03:36
● 2026-05-10 15:53:28
●MXduo-k.com2015-05-09 → 2026-05-10 · 3 obs
● 2015-05-09 01:03:36
● 2026-05-10 15:53:28
●A49.212.207.932015-05-09 → 2026-05-10 · 3 obs
● 2015-05-09 01:03:36
● 2026-05-10 15:53:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, l.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net... | - |
| duo-k.com | ns1.dns.ne.jp, ns2.dns.ne.jp | - |
✅ Authoritative Response
Server:61.211.236.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for duo-k.com (unsigned zone)
⏱️ Timing
Total: 1066ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.207.93 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | duo-k.com (pri: 10) |
| TXT | 1 | v=spf1 a:www3083.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Mail Server Role
The mail server for duo-k.com is duo-k.com.
IP Addresses
duo-k.com maps to IP address 49.212.207.93.
Other host names, for instance butamen.com, inext-ip.com, zt-marnie.com, mita-property.com and design-d2.com share IP numbers with duo-k.com.
Name Servers
duo-k.com is delegated to name servers master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
duo-k.com at least partially shares name servers with other domains such as bocjapan.com, washi.net, transl.net, aqualabo.com and saneiorjp.sakura.ne.jp.
these name servers are commonly used with the name servers dns.sakura.ad.jp.
Host names with a single IP:
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
One mail server serves duo-k.com.
duo-k.com points to one IP number: 49.212.207.93.