sici.co.jp - robtex.com
sici.co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.181.96.27🇯🇵 XSERVER-AS183.181.96.0/23 XSERVER Inc. | ||||||
| PTR | sv12666.xserver.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 | ||||||
| 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 | ||||||
| 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 | ||||||
| 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 | ||||||
| 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 2025-09-24 #20 | ||||||
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
Same first word
Similar names
DNS History
9 records (8 active, 1 former)
●NSamdns03.alpha-mail.jp2026-06-22 → 2026-07-13 · 3 obs
● 2026-06-22 14:24:38
● 2026-07-13 08:56:04
●NSkotetsu.alpha-lt.net2018-09-06 → 2026-07-13 · 2 obs
● 2026-07-13 08:56:04
●NStsukuba.aics.ne.jp2018-09-06 → 2026-07-13 · 2 obs
● 2026-07-13 08:56:04
●MXampub01.alpha-mail.net2018-09-06 → 2026-07-13 · 2 obs
● 2026-07-13 08:56:04
●MXampub02.alpha-mail.net2018-09-06 → 2026-07-13 · 2 obs
● 2026-07-13 08:56:04
●MXampub03.alpha-mail.net2018-09-06 → 2026-07-13 · 2 obs
● 2026-07-13 08:56:04
●MXampub04.alpha-mail.net2026-06-22 → 2026-07-13 · 3 obs
● 2026-06-22 14:24:38
● 2026-07-13 08:56:04
●A183.181.96.272026-06-22 → 2026-07-13 · 3 obs
● 2026-06-22 14:24:38
● 2026-07-13 08:56:04
○A216.230.250.1882018-09-06 → 2018-09-06 · 3 obs
○ 2026-06-22 14:24:38
○ 2026-07-13 08:56:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| sici.co.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 sici.co.jp (unsigned zone)
⏱️ Timing
Total: 1490ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.181.96.27 |
| NS | 3 | kotetsu.alpha-lt.net, amdns03.alpha-mail.jp... |
| MX | 4 | ampub04.alpha-mail.net (pri: 50), 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
sici.co.jp resolves to one IP address: 183.181.96.27.
study-high.com, sv12666.xserver.jp, ainomura.com and two other host names share IP numbers with sici.co.jp.
Name Servers
Three name servers are authoritative for sici.co.jp: amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp.
There is at least partial name server overlap between sici.co.jp and other domains — heiandoo.jp, rg-saga.co.jp, 1pak.jp and two more among them.
Three hostnames, one IP address apiece: 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
Mail for sici.co.jp is handled by four mail servers: ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net.
sici.co.jp has at least partial mail server overlap with other domains such as eokaki.com, yasudasangyou.co.jp, arisumi.jp and two more.
Each of the four hosts ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net points to a single IP address — 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 and ampub04.alpha-mail.net points to 216.230.254.4.