krt-c.com - dns.ninja

krt-c.com

DNSSEC⚠️ Not signed
A216.230.253.89🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
PTRwebltw89.alpha-mail.jp
NSkotetsu.alpha-lt.net ⭐
A157.205.252.6🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRamdns01.alpha-mail.jp
NSamdns03.alpha-mail.jp
A216.230.254.112🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
NStsukuba.aics.ne.jp
A157.205.252.7🇯🇵 AICS157.205.0.0/16 PACNET (proxy-registered route object)
PTRamdns02.alpha-mail.jp
MXampub01.alpha-mail.net ⭐
A216.230.254.1🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
PTRampub01.alpha-mail.net
MXampub02.alpha-mail.net ⭐
A216.230.254.2🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
PTRampub02.alpha-mail.net
MXampub03.alpha-mail.net ⭐
A216.230.254.3🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
MXampub04.alpha-mail.net(50)
A216.230.254.4🇺🇸 PSPinc216.230.248.0/21 Pacific Software Publishing, Inc. 1404 140th Place NE Bellevue WA 98007 US
TXTv=spf1 ip4:157.205.202.0/24 ip4:157.205.203.128/25 ip4:216.230.250.0/24 ip4:2...
SOAkotetsu.alpha-lt.netpostmaster@alpha-web.ne.jp 2023-08-04 #0

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1786689729

Same first word

krt-c.com

Similar names

rc-kt.com
tr-ck.com
kc-tr.com
tk-rc.com
ktr-c.com
cr-tk.com
krc-t.in
k-crt.jp
k-crt.net

DNS History

9 records (8 active, 1 former)

20162017201820192020202120222023202420252026NSamdns03.alpha-mail.jpkotetsu.alpha-lt.nettsukuba.aics.ne.jpMXampub01.alpha-mail.netampub02.alpha-mail.netampub03.alpha-mail.netampub04.alpha-mail.netA216.230.253.89216.230.251.34
●NSamdns03.alpha-mail.jp2026-04-19 → 2026-08-14 · 3 obs
○ 2015-08-22 18:58:10
● 2026-04-19 11:34:34
● 2026-08-14 07:07:02
●NSkotetsu.alpha-lt.net2015-08-22 → 2026-08-14 · 2 obs
● 2015-08-22 18:58:10
● 2026-08-14 07:07:02
●NStsukuba.aics.ne.jp2015-08-22 → 2026-08-14 · 2 obs
● 2015-08-22 18:58:10
● 2026-08-14 07:07:02
●MXampub01.alpha-mail.net2015-08-22 → 2026-08-14 · 2 obs
● 2015-08-22 18:58:10
● 2026-08-14 07:07:02
●MXampub02.alpha-mail.net2015-08-22 → 2026-08-14 · 2 obs
● 2015-08-22 18:58:10
● 2026-08-14 07:07:02
●MXampub03.alpha-mail.net2015-08-22 → 2026-08-14 · 2 obs
● 2015-08-22 18:58:10
● 2026-08-14 07:07:02
●MXampub04.alpha-mail.net2026-04-19 → 2026-08-14 · 3 obs
○ 2015-08-22 18:58:10
● 2026-04-19 11:34:34
● 2026-08-14 07:07:02
○A216.230.251.342015-08-22 → 2017-12-10 · 4 obs
● 2015-08-22 18:58:10
● 2017-12-10 05:56:38
○ 2026-04-19 11:34:34
○ 2026-08-14 07:07:02
●A216.230.253.892026-04-19 → 2026-08-14 · 3 obs
○ 2017-12-10 05:56:38
● 2026-04-19 11:34:34
● 2026-08-14 07:07:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
krt-c.comkotetsu.alpha-lt.net, tsukuba.aics.ne.jp, amdns03.alpha-mail.jp-

✅ Authoritative Response

Server:157.205.252.6

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: 861ms | Queries: -

📄 Records

TypeCountSample Data
A1216.230.253.89
NS3amdns03.alpha-mail.jp, tsukuba.aics.ne.jp...
MX4ampub01.alpha-mail.net (pri: 10), ampub03.alpha-mail.net (pri: 10)...
TXT1v=spf1 ip4:157.205.202.0/24 ip4:157.205.
SOA1kotetsu.alpha-lt.net postmaster.alpha-we

Analysis

IP Addresses

krt-c.com has exactly one IP address — 216.230.253.89.

touwaunyu.co.jp, www.unioneiga.co.jp, asuka-kouatsu.co.jp plus two other host names have IP numbers in common with krt-c.com.

Name Servers

The authoritative name servers for krt-c.com are amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp — three in total.

At least some of krt-c.com's name servers are shared with other domains, for example t-mac.jp, sea-north.co.jp, itoh-kinzoku.co.jp and two more.

The hostnames amdns03.alpha-mail.jp, kotetsu.alpha-lt.net and tsukuba.aics.ne.jp each resolve to a single IP: amdns03.alpha-mail.jp → 216.230.254.112, kotetsu.alpha-lt.net → 157.205.252.6, tsukuba.aics.ne.jp → 157.205.252.7.

Mail Servers

Mail for krt-c.com is handled by four mail servers: 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 krt-c.com are shared with other domains: wgk.co.jp, ntlogi.jp, leadskin.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.