cks21.com - robtex.com

cks21.com

DNSSEC⚠️ Not signed
A14.63.174.171🇰🇷 KT-NET14.56.0.0/13 Korea Telecom
NSjasmine.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3aaa🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjasmine.ns.cloudflare.com
A2803:f800:50::6ca2:c0aa🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRjasmine.ns.cloudflare.com
A2a06:98c1:50::ac40:20aa🇺🇸 Cloudflare2a06:98c1:50::/45
PTRjasmine.ns.cloudflare.com
A108.162.192.170🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjasmine.ns.cloudflare.com
A172.64.32.170🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjasmine.ns.cloudflare.com
A173.245.58.170🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRjasmine.ns.cloudflare.com
NSmiles.ns.cloudflare.com
A2606:4700:58::adf5:3bcf🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmiles.ns.cloudflare.com
A2803:f800:50::6ca2:c1cf🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmiles.ns.cloudflare.com
A2a06:98c1:50::ac40:21cf🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmiles.ns.cloudflare.com
A108.162.193.207🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmiles.ns.cloudflare.com
A172.64.33.207🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmiles.ns.cloudflare.com
A173.245.59.207🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmiles.ns.cloudflare.com
MXaspmx.daum.net ⭐
A121.53.85.23🇰🇷 KAKAO-AY1121.53.80.0/21 Kakao
MXalt.aspmx.daum.net(20)
A121.53.85.23🇰🇷 KAKAO-AY1121.53.80.0/21 Kakao
SOAjasmine.ns.cloudflare.comdns@cloudflare.com serial=2394341135

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=1771291435

Similar names

ks21c.com
ksc21.co.kr
csk21.ru
ksc21.net
k12cs.org

DNS History

13 records (5 active, 8 former)

20162017201820192020202120222023202420252026NSjasmine.ns.cloudflare.commiles.ns.cloudflare.comns.bbweb.co.krns.ozwiz.co.krns2.bbweb.co.krns2.ozwiz.co.krMXalt.aspmx.daum.netaspmx.daum.netkr1-aspmx1.worksmobile.comkr1-aspmx2.worksmobile.commail.cks21.comA14.63.174.17114.63.221.68
●NSjasmine.ns.cloudflare.com2026-03-12 → 2026-03-12 · 3 obs
○ 2017-03-28 09:37:30
● 2026-03-12 04:59:34
● 2026-03-12 04:59:38
●NSmiles.ns.cloudflare.com2026-03-12 → 2026-03-12 · 3 obs
○ 2017-03-28 09:37:30
● 2026-03-12 04:59:34
● 2026-03-12 04:59:38
○NSns.bbweb.co.kr2015-07-09 → 2016-02-11 · 4 obs
● 2015-07-09 14:15:08
● 2016-02-11 14:29:54
○ 2016-09-04 11:20:58
○ 2026-03-12 04:59:38
○NSns.ozwiz.co.kr2016-09-04 → 2017-03-28 · 5 obs
○ 2016-02-11 14:29:54
● 2016-09-04 11:20:58
● 2017-03-28 09:37:30
○ 2026-03-12 04:59:34
○ 2026-03-12 04:59:38
○NSns2.bbweb.co.kr2015-07-09 → 2016-02-11 · 4 obs
● 2015-07-09 14:15:08
● 2016-02-11 14:29:54
○ 2016-09-04 11:20:58
○ 2026-03-12 04:59:38
○NSns2.ozwiz.co.kr2016-09-04 → 2017-03-28 · 5 obs
○ 2016-02-11 14:29:54
● 2016-09-04 11:20:58
● 2017-03-28 09:37:30
○ 2026-03-12 04:59:34
○ 2026-03-12 04:59:38
●MXalt.aspmx.daum.net2026-03-12 → 2026-03-12 · 3 obs
○ 2017-03-28 09:37:30
● 2026-03-12 04:59:34
● 2026-03-12 04:59:38
●MXaspmx.daum.net2026-03-12 → 2026-03-12 · 3 obs
○ 2017-03-28 09:37:30
● 2026-03-12 04:59:34
● 2026-03-12 04:59:38
○MXkr1-aspmx1.worksmobile.com2016-09-04 → 2017-03-28 · 5 obs
○ 2016-02-11 14:29:54
● 2016-09-04 11:20:58
● 2017-03-28 09:37:30
○ 2026-03-12 04:59:34
○ 2026-03-12 04:59:38
○MXkr1-aspmx2.worksmobile.com2016-09-04 → 2017-03-28 · 5 obs
○ 2016-02-11 14:29:54
● 2016-09-04 11:20:58
● 2017-03-28 09:37:30
○ 2026-03-12 04:59:34
○ 2026-03-12 04:59:38
○MXmail.cks21.com2015-07-09 → 2016-02-11 · 4 obs
● 2015-07-09 14:15:08
● 2016-02-11 14:29:54
○ 2016-09-04 11:20:58
○ 2026-03-12 04:59:38
●A14.63.174.1712016-09-04 → 2026-03-12 · 3 obs
○ 2016-02-11 14:29:54
● 2016-09-04 11:20:58
● 2026-03-12 04:59:38
○A14.63.221.682015-07-09 → 2016-02-11 · 4 obs
● 2015-07-09 14:15:08
● 2016-02-11 14:29:54
○ 2016-09-04 11:20:58
○ 2026-03-12 04:59:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
cks21.commiles.ns.cloudflare.com, jasmine.ns.cloudflare.com12 records

✅ Authoritative Response

Server: 108.162.193.207

NS records: miles.ns.cloudflare.com, jasmine.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cks21.com (unsigned zone)

⏱️ Timing

Total: 283ms | Queries: -

📄 Records

TypeCountSample Data
A114.63.174.171
NS2jasmine.ns.cloudflare.com, miles.ns.cloudflare.com
MX2aspmx.daum.net (pri: 10), alt.aspmx.daum.net (pri: 20)
SOA1jasmine.ns.cloudflare.com dns.cloudflare

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (miles.ns.cloudflare.com, miles.ns.cloudflare.com, miles.ns.cloudflare.com...)

Analysis

IP Addresses

cks21.com maps to IP address 14.63.174.171.

Other host names, for instance koreaseal.com, cebuibreeze.com, pncsoft.kr, kona.or.kr and wfple.org share IP numbers with cks21.com.

Name Servers

Two name servers jasmine.ns.cloudflare.com and miles.ns.cloudflare.com are delegated to cks21.com.

cks21.com uses the same name server configuration as other domains, such as sajunuri.com, ilvacuum-cn.com, widegear.com, widenpartners.com and hyperscada.com.

cks21.com at least partially shares name servers with other domains such as chanko-matsudo.com, csi-egypt.com, sogecs.eu.org, smart-scan.org and 92888b.com.

Host names with six IP numbers: Host name jasmine.ns.cloudflare.com points to 2606:4700:50::adf5:3aaa, 2803:f800:50::6ca2:c0aa, 2a06:98c1:50::ac40:20aa, 108.162.192.170, 172.64.32.170 and 173.245.58.170; host name miles.ns.cloudflare.com points to 2606:4700:58::adf5:3bcf, 2803:f800:50::6ca2:c1cf, 2a06:98c1:50::ac40:21cf, 108.162.193.207, 172.64.33.207 and 173.245.59.207.

Mail Servers

Two mail servers handle cks21.com: aspmx.daum.net and alt.aspmx.daum.net.

cks21.com shares the same mail server setup as other domains, including qpic.co.kr, jiseoan.com, sjchurch.kr, sungsoo.biz and truckcall.com.

cks21.com shares mail servers with other domains at least in part, for instance pick2pick.com, playpump.co.kr, lidlab.net, saebiti.org and cgmotion.net.

Hostnames with one IP number:

aspmx.daum.net points to 121.53.85.23

alt.aspmx.daum.net points to 121.53.85.23

Hostnames pointing to 121.53.85.23: aspmx.daum.net, alt.aspmx.daum.net