4ku.us - robtex.com

4ku.us

DNSSEC⚠️ Not signed
A54.215.31.113🇺🇸 Amazon54.215.0.0/17 EC2 SFO prefix
PTRec2-54-215-31-113.us-west-1.compute.amazonaws.com
NSns1.dyna-ns.net ⭐
A2400:cb00:2049:1::a29f:1a5c🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A2400:cb00:2049:1::a29f:1b9e🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.26.92Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.dyna-ns.net
A162.159.27.158Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns1.dyna-ns.net
NSns2.dyna-ns.net
A2400:cb00:2049:1::a29f:1805🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A2400:cb00:2049:1::a29f:1905🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street
A162.159.24.5Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.dyna-ns.net
A162.159.25.5Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRns2.dyna-ns.net
SOAns1.dyna-ns.nethostmaster@4ku.us 2026-06-11 #2

us

DNSSEC🔒 Signed (DS record present)
NSa.cctld.us ⭐
NSb.cctld.us
NSf.cctld.us
NSk.cctld.us
NSm.cctld.us
NSn.cctld.us
NSw.cctld.us
NSx.cctld.us
NSy.cctld.us
SOAa.cctld.usadmin@tldns.godaddy serial=1784023067

Same first word

4ku.de
4ku.co.uk
4ku.com
4ku.org
4ku.us
4ku.net
4ku.info
4ku.cc
4ku.uk
4ku.biz
4ku.live

Similar names

4uk.com
uk4.de
k4u.ir
4uk.de
k4u.it
k4u.net.ua
k4u.org
ku4.us
u4k.net
k4u.net
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uk4.com
4uk.ru
uk4.me
ku4.net
ku4.de
k4u.cn
ku4.cc
k4u.com
uk4.co
uk4.in
k4u.co.il
4uk.me
uk4.net
ku4.com
k4u.com.co
u4k.com
k4u.su
k4u.co.uk
4uk.co.uk
ku4.ru
u4k.ru
k4u.es
4uk.cn
k4u.vn
k4u.de
4uk.pl
k4u.pl
u4k.top
4uk.cc
k4u.eu
k4u.cz
uk4.ru
k4u.ru
uk4.org
k4u.in
uk4.cn
u4k.de

DNS History

7 records (3 active, 4 former)

20162017201820192020202120222023202420252026NSns1.dyna-ns.netns2.dyna-ns.netns15.domaincontrol.comns16.domaincontrol.comA54.215.31.113184.168.221.4469.64.147.242
●NSns1.dyna-ns.net2026-06-09 → 2026-07-14 · 3 obs
○ 2017-06-30 17:54:58
● 2026-06-09 11:34:54
● 2026-07-14 10:15:18
○NSns15.domaincontrol.com2017-06-30 → 2017-06-30 · 3 obs
● 2017-06-30 17:54:58
○ 2026-06-09 11:34:54
○ 2026-07-14 10:15:18
○NSns16.domaincontrol.com2017-06-30 → 2017-06-30 · 3 obs
● 2017-06-30 17:54:58
○ 2026-06-09 11:34:54
○ 2026-07-14 10:15:18
●NSns2.dyna-ns.net2026-06-09 → 2026-07-14 · 3 obs
○ 2017-06-30 17:54:58
● 2026-06-09 11:34:54
● 2026-07-14 10:15:18
○A184.168.221.442017-06-30 → 2017-06-30 · 4 obs
○ 2015-09-21 18:13:24
● 2017-06-30 17:54:58
○ 2026-06-09 11:34:54
○ 2026-07-14 10:15:18
●A54.215.31.1132026-06-09 → 2026-07-14 · 3 obs
○ 2017-06-30 17:54:58
● 2026-06-09 11:34:54
● 2026-07-14 10:15:18
○A69.64.147.2422015-07-23 → 2015-07-23 · 3 obs
● 2015-07-23 04:23:00
○ 2015-09-21 18:13:24
○ 2026-07-14 10:15:18

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
usb.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us...-
4ku.usns1.dyna-ns.net, ns2.dyna-ns.net-

✅ Authoritative Response

Server:162.159.24.5

NS records: ns1.dyna-ns.net, ns2.dyna-ns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 4ku.us (unsigned zone)

⏱️ Timing

Total: 436ms | Queries: -

📄 Records

TypeCountSample Data
A154.215.31.113
NS2ns1.dyna-ns.net, ns2.dyna-ns.net
SOA1ns1.dyna-ns.net hostmaster.4ku.us

Analysis

IP Addresses

4ku.us points to a single IP number: 54.215.31.113.

Additional host names — magnoliahomebuilders.com, ucompareit.com, 206171cm.nyashcrack.top and two others — share IP numbers with 4ku.us.

Name Servers

The NS records for 4ku.us delegate to ns1.dyna-ns.net and ns2.dyna-ns.net.

4ku.us shares its name server setup with other domains, including servicenotice.com, nameservertools.com, 9c35e40bfad8a11d.com and two others.

The hosts ns1.dyna-ns.net and ns2.dyna-ns.net each resolve to four IP numbers: ns1.dyna-ns.net directs to 162.159.26.92, 162.159.27.158, 2400:cb00:2049:1::a29f:1a5c and 2400:cb00:2049:1::a29f:1b9e, and ns2.dyna-ns.net directs to 162.159.24.5, 162.159.25.5, 2400:cb00:2049:1::a29f:1805 and 2400:cb00:2049:1::a29f:1905.