czclass.com - robtex.com

czclass.com

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:b6ec🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:406f🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.64.111Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.182.236🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSachiel.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c7b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRachiel.ns.cloudflare.com
A2803:f800:50::6ca2:c37b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRachiel.ns.cloudflare.com
A2a06:98c1:50::ac40:237b🇺🇸 Cloudflare2a06:98c1:50::/45
PTRachiel.ns.cloudflare.com
A108.162.195.123🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRachiel.ns.cloudflare.com
A162.159.44.123Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRachiel.ns.cloudflare.com
A172.64.35.123🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRachiel.ns.cloudflare.com
NShadlee.ns.cloudflare.com
A2606:4700:50::a29f:2643🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhadlee.ns.cloudflare.com
A2803:f800:50::6ca2:c243🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRhadlee.ns.cloudflare.com
A2a06:98c1:50::ac40:2243🇺🇸 Cloudflare2a06:98c1:50::/45
PTRhadlee.ns.cloudflare.com
A108.162.194.67🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhadlee.ns.cloudflare.com
A162.159.38.67Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhadlee.ns.cloudflare.com
A172.64.34.67🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRhadlee.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.64.111, 172.67.182.236
IPv6 hints2606:4700:3035::ac43:b6ec, 2606:4700:3037::6815:406f
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=159, name=cloudflare-ech.com
SOAachiel.ns.cloudflare.comdns@cloudflare.com serial=2402993582

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=1778375186

Subdomains

mail.czclass.com

Similar names

zcclass.com

DNS History

15 records (6 active, 9 former)

200920112013201520172019202120232025NSachiel.ns.cloudflare.comhadlee.ns.cloudflare.commain.ns365.netns1.dns.com.cnns10.ns365.netns11.ns365.netns12.ns365.netns2.dns.com.cnns9.ns365.netMXmail.czclass.comA104.21.64.111172.67.182.2362606:4700:3035::ac43:b6ec2606:4700:3037::6815:406f183.62.252.157
●NSachiel.ns.cloudflare.com2026-05-10 → 2026-05-10 · 2 obs
○ 2017-03-15 06:05:26
● 2026-05-10 01:07:20
●NShadlee.ns.cloudflare.com2026-05-10 → 2026-05-10 · 2 obs
○ 2017-03-15 06:05:26
● 2026-05-10 01:07:20
○NSmain.ns365.net2015-07-05 → 2017-03-15 · 4 obs
○ 2008-03-11 02:51:26
● 2015-07-05 16:11:46
● 2017-03-15 06:05:26
○ 2026-05-10 01:07:20
○NSns1.dns.com.cn2008-03-11 → 2008-03-11 · 3 obs
● 2008-03-11 02:51:26
○ 2015-07-05 16:11:46
○ 2026-05-10 01:07:20
○NSns10.ns365.net2015-11-09 → 2017-03-15 · 4 obs
○ 2015-07-05 16:11:46
● 2015-11-09 10:25:44
● 2017-03-15 06:05:26
○ 2026-05-10 01:07:20
○NSns11.ns365.net2015-11-09 → 2017-03-15 · 4 obs
○ 2015-07-05 16:11:46
● 2015-11-09 10:25:44
● 2017-03-15 06:05:26
○ 2026-05-10 01:07:20
○NSns12.ns365.net2015-11-09 → 2017-03-15 · 4 obs
○ 2015-07-05 16:11:46
● 2015-11-09 10:25:44
● 2017-03-15 06:05:26
○ 2026-05-10 01:07:20
○NSns2.dns.com.cn2008-03-11 → 2008-03-11 · 3 obs
● 2008-03-11 02:51:26
○ 2015-07-05 16:11:46
○ 2026-05-10 01:07:20
○NSns9.ns365.net2015-11-09 → 2017-03-15 · 4 obs
○ 2015-07-05 16:11:46
● 2015-11-09 10:25:44
● 2017-03-15 06:05:26
○ 2026-05-10 01:07:20
○MXmail.czclass.com2015-11-09 → 2017-03-15 · 3 obs
● 2015-11-09 10:25:44
● 2017-03-15 06:05:26
○ 2026-05-10 01:07:20
●A104.21.64.1112026-05-10 → 2026-05-10 · 2 obs
○ 2017-03-15 06:05:26
● 2026-05-10 01:07:20
●A172.67.182.2362026-05-10 → 2026-05-10 · 2 obs
○ 2017-03-15 06:05:26
● 2026-05-10 01:07:20
○A183.62.252.1572015-07-05 → 2017-03-15 · 3 obs
● 2015-07-05 16:11:46
● 2017-03-15 06:05:26
○ 2026-05-10 01:07:20
●A2606:4700:3035::ac43:b6ec2026-05-10 → 2026-05-10 · 2 obs
○ 2017-03-15 06:05:26
● 2026-05-10 01:07:20
●A2606:4700:3037::6815:406f2026-05-10 → 2026-05-10 · 2 obs
○ 2017-03-15 06:05:26
● 2026-05-10 01:07:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
czclass.comhadlee.ns.cloudflare.com, achiel.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.195.123

NS records: hadlee.ns.cloudflare.com, achiel.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for czclass.com (unsigned zone)

⏱️ Timing

Total: 65ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.182.236, 104.21.64.111
AAAA22606:4700:3037::6815:406f, 2606:4700:3035::ac43:b6ec
NS2achiel.ns.cloudflare.com, hadlee.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1achiel.ns.cloudflare.com dns.cloudflare.

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

czclass.com is the parent of mail.czclass.com.

IP Addresses

Four IP numbers are pointed to by czclass.com: 2606:4700:3035::ac43:b6ec, 2606:4700:3037::6815:406f, 104.21.64.111 and 172.67.182.236.

other host names including ocpnews.com.br, monikk.com, blackfridge.com, www.melbarestaurant.com.au and mietwagenmadeira.org share IP numbers with czclass.com.

Name Servers

czclass.com is delegated to two name servers achiel.ns.cloudflare.com and hadlee.ns.cloudflare.com.

czclass.com shares the same name server setup as other domains, for instance jimvc.cn, ahzhgps.com, ljyydc.com, bbfgqgs.cn and baltecballs.cn.

czclass.com at least partially shares name servers with other domains, for instance supritecshop.com, 88885511.com, cafecaparao.com, dushuku.net and bryanjohnson.co.

these name servers are often used together with shane.ns.cloudflare.com, grannbo.ns.cloudflare.com, jason.ns.cloudflare.com and clara.ns.cloudflare.com.

Host names with six IP numbers:

Host name achiel.ns.cloudflare.com points to: 2606:4700:58::a29f:2c7b, 2803:f800:50::6ca2:c37b, 2a06:98c1:50::ac40:237b, 108.162.195.123, 162.159.44.123 and 172.64.35.123.

Host name hadlee.ns.cloudflare.com points to: 2606:4700:50::a29f:2643, 2803:f800:50::6ca2:c243, 2a06:98c1:50::ac40:2243, 108.162.194.67, 162.159.38.67 and 172.64.34.67.