atrun.jp - robtex.com
atrun.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 49.212.235.157🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www3417.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 | atrun.jp ⭐ | ||||||
| A | 49.212.235.157🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www3417.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www3417.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2024-02-01 #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
atrun.jp |
Subdomains
mail.atrun.jp |
Same first word
Similar names
DNS History
8 records (5 active, 3 former)
○NShv006921042018-01-15 → 2018-01-15 · 3 obs
○ 2026-02-24 00:42:04
○ 2026-03-24 03:06:10
●NSmaster.dns.ne.jp2026-02-24 → 2026-03-24 · 3 obs
● 2026-02-24 00:42:04
● 2026-03-24 03:06:10
●NSns1.dns.ne.jp2026-02-24 → 2026-03-24 · 3 obs
● 2026-02-24 00:42:04
● 2026-03-24 03:06:10
●NSns2.dns.ne.jp2026-02-24 → 2026-03-24 · 3 obs
● 2026-02-24 00:42:04
● 2026-03-24 03:06:10
●MXatrun.jp2026-02-24 → 2026-03-24 · 3 obs
● 2026-02-24 00:42:04
● 2026-03-24 03:06:10
○MXmail.atrun.jp2018-01-15 → 2018-01-15 · 3 obs
○ 2026-02-24 00:42:04
○ 2026-03-24 03:06:10
○A157.7.213.62018-01-15 → 2018-01-15 · 3 obs
○ 2026-02-24 00:42:04
○ 2026-03-24 03:06:10
●A49.212.235.1572026-02-24 → 2026-03-24 · 3 obs
● 2026-02-24 00:42:04
● 2026-03-24 03:06:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | f.dns.jp, h.dns.jp, a.dns.jp, b.dns.jp... | - |
| atrun.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 atrun.jp (unsigned zone)
⏱️ Timing
Total: 909ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 49.212.235.157 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | atrun.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www3417.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.dns.ne.jp, ns1.dns.ne.jp)
Analysis
Hierarchy
atrun.jp is a parent of mail.atrun.jp.
Mail Server Role
atrun.jp serves as the mail server for atrun.jp.
IP Addresses
atrun.jp points to a single IP number: 49.212.235.157.
Other host names, for instance www.sedia.co.jp, nazotora.net, usinet.jp, uenoclinic.com and world-co.jp share IP numbers with atrun.jp.
Name Servers
The delegation for atrun.jp is handled by three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
atrun.jp at least partially shares name servers with other domains, for instance kashiwagi-k.co.jp, marupeke296.com, harusuki2.sakura.ne.jp, heroes-club.jp and blog.sakura.tv.
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
A single mail server handles atrun.jp.
atrun.jp points to a single IP: 49.212.235.157.