21kz.com - robtex.com

21kz.com

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:5f8b🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:aa72🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.95.139Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.170.114🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSkim.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a7e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkim.ns.cloudflare.com
A2803:f800:50::6ca2:c07e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRkim.ns.cloudflare.com
A2a06:98c1:50::ac40:207e🇺🇸 Cloudflare2a06:98c1:50::/45
PTRkim.ns.cloudflare.com
A108.162.192.126🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkim.ns.cloudflare.com
A172.64.32.126🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkim.ns.cloudflare.com
A173.245.58.126🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRkim.ns.cloudflare.com
NSleif.ns.cloudflare.com
A2606:4700:58::a29f:2cde🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleif.ns.cloudflare.com
A2803:f800:50::6ca2:c3de🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRleif.ns.cloudflare.com
A2a06:98c1:50::ac40:23de🇺🇸 Cloudflare2a06:98c1:50::/45
PTRleif.ns.cloudflare.com
A108.162.195.222🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleif.ns.cloudflare.com
A162.159.44.222Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleif.ns.cloudflare.com
A172.64.35.222🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRleif.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.95.139, 172.67.170.114
IPv62606:4700:3031::6815:5f8b, 2606:4700:3035::ac43:aa72
SOAkim.ns.cloudflare.comdns@cloudflare.com serial=2397776212

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=1774387587

Same first word

21kz.com

Similar names

kz21.com
zk12.org
zk12.com
k1z2.com
z12k.xyz
k12z.com

DNS History

14 records (6 active, 8 former)

20162017201820192020202120222023202420252026NSkim.ns.cloudflare.comleif.ns.cloudflare.comwww.21kz.comMXio.bouncemx.comA104.21.95.139172.67.170.1142606:4700:3031::6815:5f8b2606:4700:3035::ac43:aa7270.39.84.22970.39.84.23370.39.84.23670.39.84.24270.39.84.253CNAMEnum2.dcoin.co
●NSkim.ns.cloudflare.com2026-02-14 → 2026-03-24 · 3 obs
○ 2017-04-07 19:08:48
● 2026-02-14 19:11:02
● 2026-03-24 21:52:38
●NSleif.ns.cloudflare.com2026-02-14 → 2026-03-24 · 3 obs
○ 2017-04-07 19:08:48
● 2026-02-14 19:11:02
● 2026-03-24 21:52:38
○NSwww.21kz.com2015-08-07 → 2017-04-07 · 4 obs
● 2015-08-07 11:09:58
● 2017-04-07 19:08:48
○ 2026-02-14 19:11:02
○ 2026-03-24 21:52:38
○MXio.bouncemx.com2015-12-13 → 2026-02-16 · 4 obs
● 2015-12-13 05:18:46
● 2026-02-16 05:24:54
○ 2026-02-17 19:48:20
○ 2026-03-24 21:52:38
●A104.21.95.1392026-02-14 → 2026-03-24 · 3 obs
○ 2017-04-07 19:08:48
● 2026-02-14 19:11:02
● 2026-03-24 21:52:38
●A172.67.170.1142026-02-14 → 2026-03-24 · 3 obs
○ 2017-04-07 19:08:48
● 2026-02-14 19:11:02
● 2026-03-24 21:52:38
●A2606:4700:3031::6815:5f8b2026-02-14 → 2026-03-24 · 3 obs
○ 2017-04-07 19:08:48
● 2026-02-14 19:11:02
● 2026-03-24 21:52:38
●A2606:4700:3035::ac43:aa722026-02-14 → 2026-03-24 · 3 obs
○ 2017-04-07 19:08:48
● 2026-02-14 19:11:02
● 2026-03-24 21:52:38
○A70.39.84.2292017-04-07 → 2017-04-07 · 4 obs
○ 2016-07-10 00:49:38
● 2017-04-07 19:08:48
○ 2026-02-14 19:11:02
○ 2026-03-24 21:52:38
○A70.39.84.2332016-03-14 → 2016-03-14 · 4 obs
○ 2015-12-13 05:18:46
● 2016-03-14 16:21:12
○ 2016-07-10 00:49:38
○ 2026-03-24 21:52:38
○A70.39.84.2362015-12-13 → 2015-12-13 · 4 obs
○ 2015-08-07 11:09:58
● 2015-12-13 05:18:46
○ 2016-03-14 16:21:12
○ 2026-03-24 21:52:38
○A70.39.84.2422016-07-10 → 2016-07-10 · 4 obs
○ 2016-03-14 16:21:12
● 2016-07-10 00:49:38
○ 2017-04-07 19:08:48
○ 2026-03-24 21:52:38
○A70.39.84.2532015-08-07 → 2015-08-07 · 3 obs
● 2015-08-07 11:09:58
○ 2026-02-14 19:11:02
○ 2026-03-24 21:52:38
○CNAMEnum2.dcoin.co2015-08-07 → 2026-02-16 · 4 obs
● 2015-08-07 11:09:58
● 2026-02-16 05:24:54
○ 2026-02-17 19:48:20
○ 2026-03-24 21:52:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
21kz.comkim.ns.cloudflare.com, leif.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.126

NS records: kim.ns.cloudflare.com, leif.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21kz.com (unsigned zone)

⏱️ Timing

Total: 135ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.95.139, 172.67.170.114
AAAA22606:4700:3035::ac43:aa72, 2606:4700:3031::6815:5f8b
NS2kim.ns.cloudflare.com, leif.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1kim.ns.cloudflare.com dns.cloudflare.com

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

21kz.com refers to four IP numbers: 2606:4700:3031::6815:5f8b, 2606:4700:3035::ac43:aa72, 104.21.95.139 and 172.67.170.114.

Other host names, for instance leonseo.com, sansson.com, fatdns.com, jeneirlidqrms.website and monarchels-logistics.com share IP numbers with 21kz.com.

Name Servers

21kz.com's delegation uses two name servers: kim.ns.cloudflare.com and leif.ns.cloudflare.com.

21kz.com uses the same name server setup as other domains, such as 21734.cn, jzaijiu.com, cmywt.cn, xinzg.cn and vnzupsf.cn.

21kz.com at least partially shares name servers with other domains, including web-standards.ru, latestbuy.com.au, canal-plus.pl, southcal-edu.com and 0373edu.net.cn.

These name servers are commonly used with casey.ns.cloudflare.com, emma.ns.cloudflare.com, walt.ns.cloudflare.com, liz.ns.cloudflare.com, rosemary.ns.cloudflare.com and todd.ns.cloudflare.com.

Host names with six IP numbers:

kim.ns.cloudflare.com points to 2606:4700:50::adf5:3a7e, 2803:f800:50::6ca2:c07e, 2a06:98c1:50::ac40:207e, 108.162.192.126, 172.64.32.126 and 173.245.58.126.

leif.ns.cloudflare.com points to 2606:4700:58::a29f:2cde, 2803:f800:50::6ca2:c3de, 2a06:98c1:50::ac40:23de, 108.162.195.222, 162.159.44.222 and 172.64.35.222.