itrek.jp - robtex.com
itrek.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.94.162.83🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www1273.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 | itrek.jp ⭐ | ||||||
| A | 219.94.162.83🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www1273.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www1273.sakura.ne.jp mx ~all | ||||||
| TXT | MS=7457153E6687D267A9CD8C5ED1FAFA3C5436AD0C | ||||||
| TXT | MS=ms42596522 | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2025-07-30 #1 | ||||||
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=1773558003 | ||||||
MX for
itrek.jp |
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●MXitrek.jp2015-07-02 → 2026-03-23 · 2 obs
● 2026-03-23 06:22:10
○A202.181.99.762015-07-02 → 2020-03-20 · 3 obs
● 2020-03-20 02:32:20
○ 2026-03-23 06:22:10
●A219.94.162.832026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 06:22:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| itrek.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 itrek.jp (unsigned zone)
⏱️ Timing
Total: 1012ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.94.162.83 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | itrek.jp (pri: 10) |
| TXT | 3 | MS=7457153E6687D267A9CD8C5ED1FAFA3C5436A, MS=ms42596522... |
| 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
itrek.jp serves as the mail server for itrek.jp.
IP Addresses
itrek.jp resolves to one IP number: 219.94.162.83.
Other host names, for instance happiness.sakura.ne.jp, jiminyokohama.gr.jp, tj20.jp, mail.trafficj.org and tiem.co.jp share IP numbers with itrek.jp.
Name Servers
itrek.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
itrek.jp at least partially shares name servers with other domains, including northern-north.com, msv-im06591.sakura.ne.jp, mihori.sakura.ne.jp, launge.net and chusei-oil.com.
These name servers are commonly used with 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
itrek.jp is handled by a single mail server, itrek.jp.
Host name itrek.jp resolves to a single IP: 219.94.162.83.