krt-c.com - robtex.com
krt-c.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.230.253.89🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US | ||||||
| PTR | webltw89.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 2023-08-04 #0 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1785613577 | ||||||
Same first word
krt-c.com |
Similar names
DNS History
9 records (8 active, 1 former)
●NSamdns03.alpha-mail.jp2026-04-19 → 2026-08-01 · 3 obs
● 2026-04-19 11:34:34
● 2026-08-01 20:06:24
●NSkotetsu.alpha-lt.net2015-08-22 → 2026-08-01 · 2 obs
● 2026-08-01 20:06:24
●NStsukuba.aics.ne.jp2015-08-22 → 2026-08-01 · 2 obs
● 2026-08-01 20:06:24
●MXampub01.alpha-mail.net2015-08-22 → 2026-08-01 · 2 obs
● 2026-08-01 20:06:24
●MXampub02.alpha-mail.net2015-08-22 → 2026-08-01 · 2 obs
● 2026-08-01 20:06:24
●MXampub03.alpha-mail.net2015-08-22 → 2026-08-01 · 2 obs
● 2026-08-01 20:06:24
●MXampub04.alpha-mail.net2026-04-19 → 2026-08-01 · 3 obs
● 2026-04-19 11:34:34
● 2026-08-01 20:06:24
○A216.230.251.342015-08-22 → 2017-12-10 · 4 obs
● 2017-12-10 05:56:38
○ 2026-04-19 11:34:34
○ 2026-08-01 20:06:24
●A216.230.253.892026-04-19 → 2026-08-01 · 3 obs
● 2026-04-19 11:34:34
● 2026-08-01 20:06:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| krt-c.com | kotetsu.alpha-lt.net, tsukuba.aics.ne.jp, amdns03.alpha-mail.jp | - |
✅ Authoritative Response
Server:216.230.254.112
NS records: kotetsu.alpha-lt.net, tsukuba.aics.ne.jp, amdns03.alpha-mail.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for krt-c.com (unsigned zone)
⏱️ Timing
Total: 799ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.230.253.89 |
| NS | 3 | tsukuba.aics.ne.jp, kotetsu.alpha-lt.net... |
| MX | 4 | ampub03.alpha-mail.net (pri: 10), ampub04.alpha-mail.net (pri: 50)... |
| TXT | 1 | v=spf1 ip4:157.205.202.0/24 ip4:157.205. |
| SOA | 1 | kotetsu.alpha-lt.net postmaster.alpha-we |
Analysis
IP Addresses
krt-c.com directs to one IP number, which is 216.230.253.89.
Among the host names that share IP numbers with krt-c.com are touwaunyu.co.jp, www.unioneiga.co.jp, asuka-kouatsu.co.jp and two others.
Name Servers
krt-c.com carries NS records delegating to amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp.
krt-c.com shares at least some of its name servers with other domains, including t-mac.jp, sea-north.co.jp, itoh-kinzoku.co.jp and two others.
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 — each hostname maps to exactly one IP address.
Mail Servers
Four mail servers handle email for krt-c.com: ampub01.alpha-mail.net, ampub02.alpha-mail.net, ampub03.alpha-mail.net and ampub04.alpha-mail.net.
krt-c.com shares at least some of its mail servers with other domains — for example wgk.co.jp, ntlogi.jp, leadskin.jp and two more.
ampub01.alpha-mail.net resolves to 216.230.254.1. ampub02.alpha-mail.net resolves to 216.230.254.2. ampub03.alpha-mail.net resolves to 216.230.254.3. ampub04.alpha-mail.net resolves to 216.230.254.4. All four hosts carry exactly one IP address.