ck.it-builder.jp - robtex.com

ck.it-builder.jp

DNSSEC⚠️ Not signed
A35.76.249.53🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRec2-35-76-249-53.ap-northeast-1.compute.amazonaws.com
A43.206.201.118🇯🇵 Amazon43.206.0.0/15 EC2 NRT Prefix
NSns-356.awsdns-44.com ⭐
A2600:9000:5301:6400::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront
PTRns-356.awsdns-44.com
A205.251.193.100🇺🇸 Amazon205.251.193.0/24 prefix
PTRns-356.awsdns-44.com
NSns-1514.awsdns-61.org
A2600:9000:5305:ea00::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront
PTRns-1514.awsdns-61.org
A205.251.197.234🇺🇸 Amazon205.251.197.0/24 prefix
PTRns-1514.awsdns-61.org
NSns-1915.awsdns-47.co.uk
A2600:9000:5307:7b00::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront
PTRns-1915.awsdns-47.co.uk
A205.251.199.123🇺🇸 Amazon205.251.199.0/24 prefix
PTRns-1915.awsdns-47.co.uk
NSns-598.awsdns-10.net
A2600:9000:5302:5600::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-598.awsdns-10.net
A205.251.194.86🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-598.awsdns-10.net
MXck-smtpsftpnlb-8df72bf2d00283ef.elb.ap-northeast-1.amazonaws.com ⭐
A54.150.253.95🇯🇵 Amazon54.150.0.0/16 EC2 NRT prefix
PTRec2-54-150-253-95.ap-northeast-1.compute.amazonaws.com
TXTv=spf1 +ip4:18.180.11.38/32 +ip4:18.180.19.201/32 ~all
SOAns-356.awsdns-44.comawsdns-hostmaster@amazon.com serial=1

it-builder.jp

DNSSEC⚠️ Not signed
NSns-1715.awsdns-22.co.uk ⭐
NSns-1185.awsdns-20.org
NSns-145.awsdns-18.com
NSns-972.awsdns-57.net
SOAns-1715.awsdns-22.co.ukawsdns-hostmaster@amazon.com serial=1

Subdomains

cdn.ck.it-builder.jp

Same first word

ck.doctor
ck.technology
ck.law
ck.sg
ck.ks.ua
ck.ua
ck.su
ck.kiev.ua
ck.com.vu
ck.cx
ck.mk
ck.ro
ck.nu
ck.lv
ck.ai
ck.be
ck.vc
ck.co.kr
ck.is
ck.tec.br
ck.mba
ck.world
ck.hu
ck.net
ck.no
ck.amsterdam
ck.construction
ck.pl
ck.akamai.net
ck.life
ck.com.vn
ck.chat
ck.cz
ck.gliwice.pl
ck.si
ck.com
ck.gs
ck.gov.ua
ck.by
ck.se
ck.dk
ck.cafe
ck.gy
ck.agency
ck.gov.pl
ck.soccer
ck.com.au
ck.bet
ck.app
ck.rs
ck.md
ck.ru
ck.de
ck.com.mx
ck.la
ck.ge
ck.uk
ck.page
ck.com.ua
ck.ck.ua
ck.ws
ck.camp
ck.ventures
ck.nl
ck.ca
ck.art.pl
ck.cc
ck.ac.kr
ck.org
ck.kz
ck.ms
ck.gold
ck.ly

Similar names

kc.ru
kc.domains
kc.church
kc.com
kc.io
kc.to
kc.ac.th
kc.holdings
kc.run
kc.ie
kc.fi
kc.com.ua
kc.eu
kc.style
kc.edu
kc.rentals
kc.cn
kc.com.pl
kc.design
kc.co.uk
kc.lt
kc.gov.by
kc.com.tr
kc.net.my
kc.pl.ua
kc.legal
kc.rocks
kc.net.tr
kc.today
kc.be
kc.kz
kc.dk
kc.de
kc.vg
kc.ne.kr
kc.lv
kc.se
kc.com.au
kc.ee
kc.coffee
kc.cv.ua
kc.no
kc.co.za
kc.business
kc.gs
kc.pe
kc.biz
kc.com.cn
kc.edu.vn
kc.chat
kc.life
kc.opole.pl
kc.my
kc.org.rs
kc.fo
kc.is

DNS History

14 records (7 active, 7 former)

NSns-1514.awsdns-61.orgns-1915.awsdns-47.co.ukns-356.awsdns-44.comns-598.awsdns-10.netMXck-smtpsftpnlb-8df72bf2d00283ef.elb.ap-northeast-1.amazonaws.comA35.76.249.5343.206.201.11818.178.1.633.112.103.10635.78.61.12535.79.190.152.197.110.1054.150.219.8154.249.207.180
●NSns-1514.awsdns-61.org2026-03-06 → 2026-04-12 · 2 obs
● 2026-03-06 12:35:30
● 2026-04-12 03:27:06
●NSns-1915.awsdns-47.co.uk2026-03-06 → 2026-04-12 · 2 obs
● 2026-03-06 12:35:30
● 2026-04-12 03:27:06
●NSns-356.awsdns-44.com2026-03-06 → 2026-04-12 · 2 obs
● 2026-03-06 12:35:30
● 2026-04-12 03:27:06
●NSns-598.awsdns-10.net2026-03-06 → 2026-04-12 · 2 obs
● 2026-03-06 12:35:30
● 2026-04-12 03:27:06
●MXck-smtpsftpnlb-8df72bf2d00283ef.elb.ap-northeast-1.amazonaws.com2026-03-06 → 2026-04-12 · 2 obs
● 2026-03-06 12:35:30
● 2026-04-12 03:27:06
○A18.178.1.632026-03-06 → 2026-04-12 · 2 obs
○ 2026-03-06 12:35:30
○ 2026-04-12 03:27:06
○A3.112.103.1062026-03-20 → 2026-03-21 · 5 obs
○ 2026-03-06 12:35:30
● 2026-03-20 21:13:04
● 2026-03-21 14:00:58
○ 2026-04-05 09:07:18
○ 2026-04-12 03:27:06
●A35.76.249.532026-04-05 → 2026-04-12 · 3 obs
○ 2026-03-21 14:00:58
● 2026-04-05 09:07:18
● 2026-04-12 03:27:06
○A35.78.61.1252026-03-06 → 2026-03-06 · 3 obs
● 2026-03-06 12:35:30
○ 2026-03-20 21:13:04
○ 2026-04-12 03:27:06
○A35.79.190.12026-03-20 → 2026-03-21 · 5 obs
○ 2026-03-06 12:35:30
● 2026-03-20 21:13:04
● 2026-03-21 14:00:58
○ 2026-04-05 09:07:18
○ 2026-04-12 03:27:06
●A43.206.201.1182026-04-12 → 2026-04-12 · 2 obs
○ 2026-04-05 09:07:18
● 2026-04-12 03:27:06
○A52.197.110.102026-03-06 → 2026-03-06 · 3 obs
● 2026-03-06 12:35:30
○ 2026-03-20 21:13:04
○ 2026-04-12 03:27:06
○A54.150.219.812026-04-05 → 2026-04-05 · 3 obs
○ 2026-03-21 14:00:58
● 2026-04-05 09:07:18
○ 2026-04-12 03:27:06
○A54.249.207.1802026-03-06 → 2026-04-12 · 2 obs
○ 2026-03-06 12:35:30
○ 2026-04-12 03:27:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpa.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...-
it-builder.jpns-145.awsdns-18.com, ns-972.awsdns-57.net, ns-1185.awsdns-20.org, ns-1715.awsdns-22.co.uk-
ck.it-builder.jpns-1514.awsdns-61.org, ns-1915.awsdns-47.co.uk, ns-356.awsdns-44.com, ns-598.awsdns-10.net-

✅ Authoritative Response

Server:205.251.197.234

NS records: ns-1514.awsdns-61.org, ns-1915.awsdns-47.co.uk, ns-356.awsdns-44.com, ns-598.awsdns-10.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for it-builder.jp (unsigned zone)

⏱️ Timing

Total: 1106ms | Queries: -

📄 Records

TypeCountSample Data
A243.206.201.118, 35.76.249.53
NS4ns-1514.awsdns-61.org, ns-1915.awsdns-47.co.uk...
MX1ck-smtpsftpnlb-8df72bf2d00283ef.elb.ap-n
TXT1v=spf1 +ip4:18.180.11.38/32 +ip4:18.180
SOA1ns-356.awsdns-44.com awsdns-hostmaster.a

Analysis

Hierarchy

ck.it-builder.jp is the parent of cdn.ck.it-builder.jp.

IP Addresses

ck.it-builder.jp resolves to two IPs: 35.76.249.53 and 43.206.201.118.

Other host names like parceiro-shop.com and ec2-43-206-201-118.ap-northeast-1.compute.amazonaws.com share IP numbers with ck.it-builder.jp.

Name Servers

ck.it-builder.jp is delegated to four name servers: ns-356.awsdns-44.com, ns-598.awsdns-10.net, ns-1514.awsdns-61.org and ns-1915.awsdns-47.co.uk.

ck.it-builder.jp at least partially shares name servers with other domains, for instance teclab.com.au, houstonappliancerepairs.net, biswellfamily.com, d8olfc5kfcdzv.cloudfront.net and ebinacci.jp.

Host names with two IP numbers:

Host name ns-356.awsdns-44.com points to: 2600:9000:5301:6400::1 and 205.251.193.100.

Host name ns-598.awsdns-10.net points to: 2600:9000:5302:5600::1 and 205.251.194.86.

Host name ns-1514.awsdns-61.org points to: 2600:9000:5305:ea00::1 and 205.251.197.234.

Host name ns-1915.awsdns-47.co.uk points to: 2600:9000:5307:7b00::1 and 205.251.199.123.

Mail Servers

ck.it-builder.jp is handled by a single mail server, ck-smtpsftpnlb-8df72bf2d00283ef.elb.ap-northeast-1.amazonaws.com.

Host name ck-smtpsftpnlb-8df72bf2d00283ef.elb.ap-northeast-1.amazonaws.com points to IP address 54.150.253.95.