kentco.jp - robtex.com
kentco.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.224.185.89🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2479.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 | kentco.jp ⭐ | ||||||
| A | 210.224.185.89🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www2479.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www2479.sakura.ne.jp mx ~all | ||||||
| TXT | google-site-verification=1zluvsnMLom13m8_h94fyT9zJ4o37t5TjbVfZj3t90Q | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2025-03-04 #2 | ||||||
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=1783449903 | ||||||
MX for
kentco.jp |
Same first word
kentco.jp |
Similar names
DNS History
5 records (5 active, 0 former)
●MXkentco.jp2015-07-17 → 2026-07-07 · 2 obs
● 2026-07-07 20:04:52
●A210.224.185.892015-07-17 → 2026-07-07 · 2 obs
● 2026-07-07 20:04:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| kentco.jp | ns2.dns.ne.jp, ns1.dns.ne.jp | 2 records |
✅ Authoritative Response
Server:133.167.21.1
NS records: ns2.dns.ne.jp, ns1.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kentco.jp (unsigned zone)
⏱️ Timing
Total: 838ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.224.185.89 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | kentco.jp (pri: 10) |
| TXT | 2 | v=spf1 a:www2479.sakura.ne.jp mx ~all, google-site-verification=1zluvsnMLom13m8 |
| 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
kentco.jp is listed as a mail server for itself.
IP Addresses
kentco.jp resolves to one IP address: 210.224.185.89.
flower.prnet.jp, giin-aiwu.com, f-raise.com and two other host names share IP numbers with kentco.jp.
Name Servers
Three name servers are authoritative for kentco.jp: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
kentco.jp partially shares its NS delegation with several other domains, including msv-im05387.sakura.ne.jp, kikusui3.com, panjoclub-iz.com and two others.
These name servers often co-occur with the name servers dns.sakura.ad.jp.
Three hostnames, one IP address apiece: 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
Mail for kentco.jp is handled by one mail server — kentco.jp.
There is one IP number for kentco.jp: 210.224.185.89.