fesystem.jp - robtex.com
fesystem.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.230.253.84🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | webltw84.alpha-mail.jp | ||||||
| NS | kotetsu.alpha-lt.net ⭐ | ||||||
| A | 157.205.252.6🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object) | ||||||
| PTR | amdns01.alpha-mail.jp | ||||||
| NS | amdns03.alpha-mail.jp | ||||||
| A | 216.230.254.112🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | amdns03.alpha-mail.jp | ||||||
| NS | tsukuba.aics.ne.jp | ||||||
| A | 157.205.252.7🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object) | ||||||
| PTR | amdns02.alpha-mail.jp | ||||||
| MX | ampub01.alpha-mail.net ⭐ | ||||||
| A | 216.230.254.1🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | ampub01.alpha-mail.net | ||||||
| MX | ampub02.alpha-mail.net ⭐ | ||||||
| A | 216.230.254.2🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | ampub02.alpha-mail.net | ||||||
| MX | ampub03.alpha-mail.net ⭐ | ||||||
| A | 216.230.254.3🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | ampub03.alpha-mail.net | ||||||
| MX | ampub04.alpha-mail.net(50) | ||||||
| A | 216.230.254.4🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | ampub04.alpha-mail.net | ||||||
| TXT | v=spf1 ip4:157.205.202.0/24 ip4:157.205.203.128/25 ip4:216.230.250.0/24 ip4:2... | ||||||
| SOA | kotetsu.alpha-lt.netpostmaster@alpha-web.ne.jp 2023-07-26 #0 | ||||||
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=1774664102 | ||||||
Same first word
Similar names
DNS History
9 records (8 active, 1 former)
●NSamdns03.alpha-mail.jp2026-02-25 → 2026-03-28 · 3 obs
● 2026-02-25 10:20:04
● 2026-03-28 02:33:36
●NSkotetsu.alpha-lt.net2015-07-19 → 2026-03-28 · 2 obs
● 2026-03-28 02:33:36
●NStsukuba.aics.ne.jp2015-07-19 → 2026-03-28 · 2 obs
● 2026-03-28 02:33:36
●MXampub01.alpha-mail.net2015-07-19 → 2026-03-28 · 2 obs
● 2026-03-28 02:33:36
●MXampub02.alpha-mail.net2015-07-19 → 2026-03-28 · 2 obs
● 2026-03-28 02:33:36
●MXampub03.alpha-mail.net2015-07-19 → 2026-03-28 · 2 obs
● 2026-03-28 02:33:36
●MXampub04.alpha-mail.net2026-02-25 → 2026-03-28 · 3 obs
● 2026-02-25 10:20:04
● 2026-03-28 02:33:36
○A216.230.251.972015-07-19 → 2017-02-15 · 4 obs
● 2017-02-15 16:52:38
○ 2026-02-25 10:20:04
○ 2026-03-28 02:33:36
●A216.230.253.842026-02-25 → 2026-03-28 · 3 obs
● 2026-02-25 10:20:04
● 2026-03-28 02:33:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | b.dns.jp, e.dns.jp, d.dns.jp, c.dns.jp... | - |
| fesystem.jp | amdns03.alpha-mail.jp, tsukuba.aics.ne.jp, kotetsu.alpha-lt.net | 1 record |
✅ Authoritative Response
Server:157.205.252.7
NS records: amdns03.alpha-mail.jp, tsukuba.aics.ne.jp, kotetsu.alpha-lt.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for fesystem.jp (unsigned zone)
⏱️ Timing
Total: 1507ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.230.253.84 |
| NS | 3 | kotetsu.alpha-lt.net, amdns03.alpha-mail.jp... |
| MX | 4 | ampub03.alpha-mail.net (pri: 10), ampub01.alpha-mail.net (pri: 10)... |
| TXT | 1 | v=spf1 ip4:157.205.202.0/24 ip4:157.205. |
| SOA | 1 | kotetsu.alpha-lt.net postmaster.alpha-we |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (amdns03.alpha-mail.jp)
Analysis
IP Addresses
fesystem.jp resolves to one IP number: 216.230.253.84.
other host names including kimura-office.jp, hak.jp, y-s-techno.com, fmc-co.jp and tsec.jp share IP numbers with fesystem.jp.
Name Servers
fesystem.jp is delegated to three name servers amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp.
fesystem.jp at least partially shares name servers with other domains, for instance fukurou.or.jp, couga.co.jp, net-in-akihabara.co.jp, chibamente.co.jp and probe-kgk.com.
Host names with one IP number: amdns03.alpha-mail.jp points to 216.230.254.112; kotetsu.alpha-lt.net points to 157.205.252.6; tsukuba.aics.ne.jp points to 157.205.252.7.
Mail Servers
Four mail servers handle fesystem.jp: ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net.
fesystem.jp shares some mail servers with other domains, at least partially, for instance kurosawakensetu.co.jp, sky-cw.com, sandasc.org, ssco.jp and tokyoeng.com.
Host names with one IP number: ampub01.alpha-mail.net points to 216.230.254.1; ampub02.alpha-mail.net points to 216.230.254.2; ampub03.alpha-mail.net points to 216.230.254.3; ampub04.alpha-mail.net points to 216.230.254.4.