jkj.jp - robtex.com
jkj.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.180.184🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2744.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 | jkj.jp ⭐ | ||||||
| A | 49.212.180.184🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2744.sakura.ne.jp | ||||||
| TXT | google-site-verification=1GFUZfJOmBmyhX3dPMfGyoDrSqdbq8XJB2Kpb8rHwaU | ||||||
| TXT | v=spf1 ip4:49.212.180.184 ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2026-05-07 #8 | ||||||
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1785424503 | ||||||
MX for
jkj.jp |
Same first word
jkj.fo |
jkj.com |
jkj.co.kr |
jkj.de |
jkj.uk.com |
jkj.be |
jkj.co.jp |
jkj.wang |
jkj.fr |
jkj.net |
jkj.kapsi.fi |
jkj.nl |
jkj.ru |
jkj.org |
jkj.pl |
jkj.jp |
Similar names
jjk.cn |
jjk.ca |
jjk.kr |
kjj.cz |
kjj.app |
kjj.com.cn |
kjj.net |
jjk.cz |
kjj.ca |
kjj.se |
jjk.com |
jjk.org |
jjk.io |
jjk.or.jp |
jjk.net |
jjk.app |
kjj.dk |
jjk.se |
jjk.info |
kjj.de |
jjk.de |
jjk.fyi |
kjj.co.uk |
kjj.ru |
jjk.it |
kjj.org |
jjk.sk |
jjk.co |
DNS History
5 records (5 active, 0 former)
●MXjkj.jp2026-05-01 → 2026-07-30 · 2 obs
● 2026-07-30 15:55:30
●A49.212.180.1842026-05-01 → 2026-07-30 · 2 obs
● 2026-07-30 15:55:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, d.dns.jp, c.dns.jp, g.dns.jp... | - |
| jkj.jp | ns1.dns.ne.jp, ns2.dns.ne.jp | 2 records |
✅ 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 jkj.jp (unsigned zone)
⏱️ Timing
Total: 909ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.180.184 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | jkj.jp (pri: 10) |
| TXT | 2 | google-site-verification=1GFUZfJOmBmyhX3, v=spf1 ip4:49.212.180.184 ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)
Analysis
Mail Server Role
jkj.jp handles its own mail, functioning as its own mail server.
IP Addresses
jkj.jp resolves to just one IP address, 49.212.180.184.
Two other host names, along with dairin.jp, kawacyu.sakura.ne.jp and challenged.co.jp, also share IP numbers with jkj.jp.
Name Servers
jkj.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
At least some of jkj.jp's name servers are shared with other domains, for example hakuronn.net, torocco.jp, psaj.com and two more.
These name servers tend to be used in conjunction with the name servers dns.sakura.ad.jp.
master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp each resolve to a single IP address: master.dns.ne.jp resolves to 210.224.172.18, ns1.dns.ne.jp resolves to 61.211.236.1 and ns2.dns.ne.jp resolves to 133.167.21.1.
Mail Servers
jkj.jp is served by just one mail server: jkj.jp.
jkj.jp resolves to a single IP number: 49.212.180.184.