`ckz.us`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:b9^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:8031^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.0.185^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.128.49^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cory.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b5d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cory.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c15d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`cory.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:215d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`cory.ns.cloudflare.com`
		A	108.162.193.93^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-108-162-193-93.defastlink.net`
		A	172.64.33.93^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-172-64-33-93.defastlink.net`
		A	173.245.59.93^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-173-245-59-93.defastlink.net`
NS	`mary.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a86^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mary.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c086^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`mary.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2086^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`mary.ns.cloudflare.com`
		A	108.162.192.134^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mary.ns.cloudflare.com`
		A	172.64.32.134^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mary.ns.cloudflare.com`
		A	173.245.58.134^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`mary.ns.cloudflare.com`
MX	`route1.mx.cloudflare.net` ⭐
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽³⁷⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
MX	`route3.mx.cloudflare.net`⁽⁷⁷⁾
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.0.185, 172.67.128.49
		IPv6 hints	2606:4700:3031::6815:b9, 2606:4700:3037::ac43:8031
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=42, name=cloudflare-ech.com
SOA	`cory.ns.cloudflare.com`dns@cloudflare.com serial=2400619874

`us`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.cctld.us` ⭐
	NS	`b.cctld.us`
	NS	`f.cctld.us`
	NS	`k.cctld.us`
	NS	`m.cctld.us`
	NS	`n.cctld.us`
	NS	`w.cctld.us`
	NS	`x.cctld.us`
	NS	`y.cctld.us`
	SOA	`a.cctld.us`admin@tldns.godaddy serial=1776209567

Previously MX for

ckz.us

Same first word

ckz.cz

ckz.ru

ckz.com.pl

ckz.swidnica.pl

ckz.org

ckz.net

ckz.at

ckz.su

ckz.info

ckz.com

ckz.de

ckz.us

ckz.krakow.pl

ckz.pl

ckz.be

ckz.co

ckz.cn

ckz.com.br

ckz.jp

ckz.ch

Similar names

kcz.pl

zck.or.jp

zkc.cz

kzc.cz

czk.by

zck.cn

kcz.co.uk

czk.app

czk.org.ua

kcz.com

kcz.de

kcz.co.com

czk.com

czk.cn

zkc.net

zck.de

kcz.it

czk.me

kzc.com.sg

kcz.in

zkc.at

zck.in

zkc.in

czk.cc

kzc.de

zck.uk

zkc.org

zck.nl

czk.us

zck.org

kcz.ru

zkc.it

czk.wtf

kcz.ch

kzc.nl

czk.rs

kzc.jp

czk.net

kzc.co

zck.krakow.pl

zkc.me

czk.hr

zkc.com

zkc.mx

kzc.com

czk.jp

zck.eu

zkc.de

zkc.eu

kzc.eu

kcz.org

czk.mk

zck.pl

czk.camp

czk.ink

czk.se

czk.co.kr

czk.de

zkc.co

zck.org.pl

zkc.nl

zkc.com.mx

czk.org

czk.com.cn

zck.ch

czk.world

czk.nl

czk.co

kzc.org

zck.it

kzc.ru

kzc.kz

czk.be

czk.ru

czk.si

zkc.ru

kzc.co.uk

kzc.info

zkc.lt

czk.cz

kcz.eu

zck.wroc.pl

zck.be

kzc.at

DNS History

17 records (9 active, 8 former)

●NScory.ns.cloudflare.com2026-04-09 → 2026-04-15 · 3 obs

○ 2016-07-07 04:14:16
● 2026-04-09 05:31:42
● 2026-04-15 00:03:00

●NSmary.ns.cloudflare.com2026-04-09 → 2026-04-15 · 3 obs

○ 2016-07-07 04:14:16
● 2026-04-09 05:31:42
● 2026-04-15 00:03:00

○NSns1.linode.com2015-06-25 → 2016-07-07 · 4 obs

● 2015-06-25 23:23:14
● 2016-07-07 04:14:16
○ 2026-04-09 05:31:42
○ 2026-04-15 00:03:00

○NSns2.linode.com2015-06-25 → 2016-07-07 · 4 obs

● 2015-06-25 23:23:14
● 2016-07-07 04:14:16
○ 2026-04-09 05:31:42
○ 2026-04-15 00:03:00

○NSns3.linode.com2015-06-25 → 2016-07-07 · 4 obs

● 2015-06-25 23:23:14
● 2016-07-07 04:14:16
○ 2026-04-09 05:31:42
○ 2026-04-15 00:03:00

○NSns4.linode.com2015-06-25 → 2016-07-07 · 4 obs

● 2015-06-25 23:23:14
● 2016-07-07 04:14:16
○ 2026-04-09 05:31:42
○ 2026-04-15 00:03:00

○NSns5.linode.com2015-06-25 → 2016-07-07 · 4 obs

● 2015-06-25 23:23:14
● 2016-07-07 04:14:16
○ 2026-04-09 05:31:42
○ 2026-04-15 00:03:00

○MXckz.us2015-06-25 → 2015-11-26 · 4 obs

● 2015-06-25 23:23:14
● 2015-11-26 10:19:02
○ 2016-03-04 15:21:40
○ 2026-04-15 00:03:00

○MXmail.ckz.us2016-03-04 → 2016-07-07 · 5 obs

○ 2015-11-26 10:19:02
● 2016-03-04 15:21:40
● 2016-07-07 04:14:16
○ 2026-04-09 05:31:42
○ 2026-04-15 00:03:00

●MXroute1.mx.cloudflare.net2026-04-09 → 2026-04-15 · 3 obs

○ 2016-07-07 04:14:16
● 2026-04-09 05:31:42
● 2026-04-15 00:03:00

●MXroute2.mx.cloudflare.net2026-04-09 → 2026-04-15 · 3 obs

○ 2016-07-07 04:14:16
● 2026-04-09 05:31:42
● 2026-04-15 00:03:00

●MXroute3.mx.cloudflare.net2026-04-09 → 2026-04-15 · 3 obs

○ 2016-07-07 04:14:16
● 2026-04-09 05:31:42
● 2026-04-15 00:03:00

●A104.21.0.1852026-04-09 → 2026-04-15 · 3 obs

○ 2016-07-07 04:14:16
● 2026-04-09 05:31:42
● 2026-04-15 00:03:00

●A172.67.128.492026-04-09 → 2026-04-15 · 3 obs

○ 2016-07-07 04:14:16
● 2026-04-09 05:31:42
● 2026-04-15 00:03:00

●A2606:4700:3031::6815:b92026-04-09 → 2026-04-15 · 3 obs

○ 2016-07-07 04:14:16
● 2026-04-09 05:31:42
● 2026-04-15 00:03:00

●A2606:4700:3037::ac43:80312026-04-09 → 2026-04-15 · 3 obs

○ 2016-07-07 04:14:16
● 2026-04-09 05:31:42
● 2026-04-15 00:03:00

○A64.22.124.1802015-06-25 → 2016-07-07 · 4 obs

● 2015-06-25 23:23:14
● 2016-07-07 04:14:16
○ 2026-04-09 05:31:42
○ 2026-04-15 00:03:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
us	n.cctld.us, y.cctld.us, k.cctld.us, f.cctld.us...	-
ckz.us	mary.ns.cloudflare.com, cory.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.59.93

NS records: mary.ns.cloudflare.com, cory.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ckz.us (unsigned zone)

⏱️ Timing

Total: 877ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.0.185, 172.67.128.49`
AAAA	2	`2606:4700:3031::6815:b9, 2606:4700:3037::ac43:8031`
NS	2	`cory.ns.cloudflare.com, mary.ns.cloudflare.com`
MX	3	`route1.mx.cloudflare.net (pri: 21), route2.mx.cloudflare.net (pri: 37)...`
TXT	1	`v=spf1 include:_spf.mx.cloudflare.net ~a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`cory.ns.cloudflare.com dns.cloudflare.co`

Analysis

IP Addresses

ckz.us maps to four IP numbers: 2606:4700:3031::6815:b9, 2606:4700:3037::ac43:8031, 104.21.0.185 and 172.67.128.49.

Other host names such as aicplay.com, medporady.pl, o.yugioh-(0x68656e746169).net, oferta.liquidz.com.br and cdjiexiang.com share IPs with ckz.us.

Name Servers

Two name servers cory.ns.cloudflare.com and mary.ns.cloudflare.com handle the delegation for ckz.us.

ckz.us shares the same name server setup as other domains, for example luxomino434.com, tochka-mira.ru, venditano369.com, shopuxio386.com and shopovaro465.com.

ckz.us at least partially shares name servers with other domains, for example startram.com, mdmsystems.net, click-net.ru, johnkiv.us and repticity.com.

these name servers are commonly used alongside alex.ns.cloudflare.com name servers.

Host names with six IP numbers:

cory.ns.cloudflare.com points to 2606:4700:58::adf5:3b5d, 2803:f800:50::6ca2:c15d, 2a06:98c1:50::ac40:215d, 108.162.193.93, 172.64.33.93 and 173.245.59.93.

mary.ns.cloudflare.com points to 2606:4700:50::adf5:3a86, 2803:f800:50::6ca2:c086, 2a06:98c1:50::ac40:2086, 108.162.192.134, 172.64.32.134 and 173.245.58.134.

Mail Servers

ckz.us is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

ckz.us shares at least partially some mail servers with other domains, for instance shsmh.org, devanswe.rs, polskiekazynos.com, gfx3d.pl and persian.golf.

Host names with six IP numbers:

route1.mx.cloudflare.net points to: 2606:4700:f5::b, 2606:4700:f5::c, 2606:4700:f5::d, 162.159.205.11, 162.159.205.12 and 162.159.205.13

route2.mx.cloudflare.net points to: 2606:4700:f5::e, 2606:4700:f5::f, 2606:4700:f5::10, 162.159.205.17, 162.159.205.18 and 162.159.205.19

route3.mx.cloudflare.net points to: 2606:4700:f5::11, 2606:4700:f5::12, 2606:4700:f5::13, 162.159.205.23, 162.159.205.24 and 162.159.205.25

ckz.us - robtex.com

ckz.us

us

Previously MX for

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`ckz.us`

`us`