tehai.jp - robtex.com
tehai.jp
| DNSSEC | ⚠️ Not signed | ||||||
| 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 | ||||||
| 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 | ||||||
| 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 | ||||||
| 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 2026-02-02 #20 | ||||||
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=1785171603 | ||||||
Subdomains
jtbtredi.tehai.jp |
Same first word
Similar names
DNS History
8 records (7 active, 1 former)
●NSamdns03.alpha-mail.jp2026-05-12 → 2026-07-27 · 3 obs
● 2026-05-12 13:39:22
● 2026-07-27 17:13:52
●NSkotetsu.alpha-lt.net2015-07-17 → 2026-07-27 · 2 obs
● 2026-07-27 17:13:52
●NStsukuba.aics.ne.jp2015-07-17 → 2026-07-27 · 2 obs
● 2026-07-27 17:13:52
●MXampub01.alpha-mail.net2015-07-17 → 2026-07-27 · 2 obs
● 2026-07-27 17:13:52
●MXampub02.alpha-mail.net2015-07-17 → 2026-07-27 · 2 obs
● 2026-07-27 17:13:52
●MXampub03.alpha-mail.net2015-07-17 → 2026-07-27 · 2 obs
● 2026-07-27 17:13:52
●MXampub04.alpha-mail.net2026-05-12 → 2026-07-27 · 3 obs
● 2026-05-12 13:39:22
● 2026-07-27 17:13:52
○A216.230.250.1512015-07-17 → 2017-05-25 · 4 obs
● 2017-05-25 04:29:22
○ 2026-05-12 13:39:22
○ 2026-07-27 17:13:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | g.dns.jp, h.dns.jp, e.dns.jp, a.dns.jp... | - |
| tehai.jp | tsukuba.aics.ne.jp, amdns03.alpha-mail.jp, kotetsu.alpha-lt.net | 1 record |
✅ Authoritative Response
Server:157.205.252.7
NS records: tsukuba.aics.ne.jp, amdns03.alpha-mail.jp, kotetsu.alpha-lt.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for tehai.jp (unsigned zone)
⏱️ Timing
Total: 1806ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | kotetsu.alpha-lt.net, tsukuba.aics.ne.jp... |
| MX | 4 | ampub04.alpha-mail.net (pri: 50), ampub03.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
Hierarchy
tehai.jp is the parent zone for jtbtredi.tehai.jp.
Name Servers
tehai.jp is delegated to three name servers: amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp.
tehai.jp partially shares its NS delegation with several other domains, including k-kosho.com, arc-tec.co.jp, fieldam.co.jp and two others.
amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp each resolve to a single IP address: amdns03.alpha-mail.jp resolves to 216.230.254.112, kotetsu.alpha-lt.net resolves to 157.205.252.6 and tsukuba.aics.ne.jp resolves to 157.205.252.7.
Mail Servers
Four mail servers handle email for tehai.jp: ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net.
At least some of the mail servers used by tehai.jp are shared with other domains: faf.co.jp, scrumfoods.co.jp, bell-a.co.jp and two others among them.
Four host names, each with one IP address: ampub01.alpha-mail.net has 216.230.254.1, ampub02.alpha-mail.net has 216.230.254.2, ampub03.alpha-mail.net has 216.230.254.3 and ampub04.alpha-mail.net has 216.230.254.4.