classcloud.tw - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

classcloud.tw

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:b987🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::6815:2870🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.40.112Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.185.135🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSadaline.ns.cloudflare.com ⭐
A2606:4700:50::a29f:2631🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadaline.ns.cloudflare.com
A2803:f800:50::6ca2:c231🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRadaline.ns.cloudflare.com
A2a06:98c1:50::ac40:2231🇺🇸 Cloudflare2a06:98c1:50::/45
PTRadaline.ns.cloudflare.com
A108.162.194.49🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadaline.ns.cloudflare.com
A162.159.38.49Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadaline.ns.cloudflare.com
A172.64.34.49🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRadaline.ns.cloudflare.com
NScoen.ns.cloudflare.com
A2606:4700:58::a29f:2c97🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoen.ns.cloudflare.com
A2803:f800:50::6ca2:c397🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcoen.ns.cloudflare.com
A2a06:98c1:50::ac40:2397🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcoen.ns.cloudflare.com
A108.162.195.151🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoen.ns.cloudflare.com
A162.159.44.151Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoen.ns.cloudflare.com
A172.64.35.151🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcoen.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.40.112, 172.67.185.135
IPv6 hints2606:4700:3031::ac43:b987, 2606:4700:3032::6815:2870
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=197, name=cloudflare-ech.com
SOAadaline.ns.cloudflare.comdns@cloudflare.com serial=2417189220

tw

DNSSEC🔒 Signed (DS record present)
NSa.dns.tw ⭐
NSanytld.apnic.net ⚠️ Not in parent delegation
NSb.dns.tw
NSc.dns.tw
NSd.dns.tw
NSe.dns.tw
NSf.dns.tw
NSg.dns.tw
NSh.dns.tw
SOAa.dns.twsnw@twnic.net.tw serial=2011097078

Subdomains

www.classcloud.tw

Same first word

classcloud.pages.dev
classcloud.online
classcloud.ru
classcloud.kr
classcloud.net
classcloud.co.uk
classcloud.cc
classcloud.eu
classcloud.io
classcloud.org.pe
classcloud.help
classcloud.org
classcloud.in
classcloud.ai
classcloud.fit
classcloud.de
classcloud.email
classcloud.school
classcloud.com.cn
classcloud.co
classcloud.tw
classcloud.nl
classcloud.dev
classcloud.us
classcloud.app
classcloud.ca
classcloud.com
classcloud.me

Similar names

cloudclass.io
cloudclass.edu.vn
cloudclass.net
cloudclass.tv
cloudclass.workers.dev
cloudclass.co.uk
cloudclass.eu.org
cloudclass.pk
cloudclass.com.vn
cloudclass.in
cloudclass.com.br
docsusallc.com
cloudclass.be
cloudclass.vn
cloudclass.ai
cloudclass.de
cloudclass.org
cloudclass.cn
cloudscals.com
cloudclass.vercel.app
cloudclass.com

Previous names

clara.tw
clarence.tw
claridgeandking.tw
clarinstw.tw
clarisonic.tw
claritypharma.tw
clarityspace.tw
clarivate.tw
clarivateanalytics.tw
clark.tw
clarks.tw
clarksoriginals.tw
clarkstaiwan.tw
claroc.tw
clarr.tw
clasc.tw
clash.tw
clasohlson.tw
class365.tw

Next names

classerp.tw
classic.tw
classica.tw
classicalmusic.tw
classicolabcoat.tw
classicstudio.tw
classictouring.tw
classictown.tw
classictreadmills.tw
classified.tw
classifieds.tw
classima.tw
classjuggler.tw
classline.tw
classmates.tw
classoneequipment.tw
classroo.tw
classroom37.tw
classvm.tw
classy.tw

DNS History

13 records (6 active, 7 former)

20192020202120222023202420252026NSadaline.ns.cloudflare.comcoen.ns.cloudflare.comlocalhost\@pdns1.pchome.com.twpdns2.pchome.com.twMXwww.classcloud.twwww2.classcloud.twzenvc.classcloud.twA104.21.40.112172.67.185.1352606:4700:3031::ac43:b9872606:4700:3032::6815:2870203.66.57.49
●NSadaline.ns.cloudflare.com2026-09-30 → 2026-10-28 · 3 obs
○ 2018-05-13 21:20:44
● 2026-09-30 05:29:04
● 2026-10-28 16:14:24
●NScoen.ns.cloudflare.com2026-09-30 → 2026-10-28 · 3 obs
○ 2018-05-13 21:20:44
● 2026-09-30 05:29:04
● 2026-10-28 16:14:24
○NSlocalhost\@2018-05-13 → 2018-05-13 · 3 obs
● 2018-05-13 21:20:44
○ 2026-09-30 05:29:04
○ 2026-10-28 16:14:24
○NSpdns1.pchome.com.tw2018-05-13 → 2018-05-13 · 3 obs
● 2018-05-13 21:20:44
○ 2026-09-30 05:29:04
○ 2026-10-28 16:14:24
○NSpdns2.pchome.com.tw2018-05-13 → 2018-05-13 · 3 obs
● 2018-05-13 21:20:44
○ 2026-09-30 05:29:04
○ 2026-10-28 16:14:24
○MXwww.classcloud.tw2018-05-13 → 2018-05-13 · 3 obs
● 2018-05-13 21:20:44
○ 2026-09-30 05:29:04
○ 2026-10-28 16:14:24
○MXwww2.classcloud.tw2018-05-13 → 2018-05-13 · 3 obs
● 2018-05-13 21:20:44
○ 2026-09-30 05:29:04
○ 2026-10-28 16:14:24
○MXzenvc.classcloud.tw2018-05-13 → 2018-05-13 · 3 obs
● 2018-05-13 21:20:44
○ 2026-09-30 05:29:04
○ 2026-10-28 16:14:24
●A104.21.40.1122026-09-30 → 2026-10-28 · 3 obs
○ 2018-05-13 21:20:44
● 2026-09-30 05:29:04
● 2026-10-28 16:14:24
●A172.67.185.1352026-09-30 → 2026-10-28 · 3 obs
○ 2018-05-13 21:20:44
● 2026-09-30 05:29:04
● 2026-10-28 16:14:24
○A203.66.57.492018-05-13 → 2018-05-13 · 3 obs
● 2018-05-13 21:20:44
○ 2026-09-30 05:29:04
○ 2026-10-28 16:14:24
●A2606:4700:3031::ac43:b9872026-09-30 → 2026-10-28 · 3 obs
○ 2018-05-13 21:20:44
● 2026-09-30 05:29:04
● 2026-10-28 16:14:24
●A2606:4700:3032::6815:28702026-09-30 → 2026-10-28 · 3 obs
○ 2018-05-13 21:20:44
● 2026-09-30 05:29:04
● 2026-10-28 16:14:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
twa.dns.tw, b.dns.tw, c.dns.tw, d.dns.tw...15 records
classcloud.twadaline.ns.cloudflare.com, coen.ns.cloudflare.com-

✅ Authoritative Response

Server:162.159.38.49

NS records: adaline.ns.cloudflare.com, coen.ns.cloudflare.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at tw: Error: DNS query timeout: 203.73.24.25 for DNSKEY tw

⏱️ Timing

Total: 4013ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.40.112, 172.67.185.135
AAAA22606:4700:3031::ac43:b987, 2606:4700:3032::6815:2870
NS2adaline.ns.cloudflare.com, coen.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1adaline.ns.cloudflare.com dns.cloudflare

📌 Glue Records Collected

Total: 15

In-bailiwick: 14 (a.dns.tw, b.dns.tw, c.dns.tw...)

Out-of-bailiwick: 1 (anytld.apnic.net)

Analysis

Hierarchy

classcloud.tw serves as the parent of www.classcloud.tw.

IP Addresses

classcloud.tw resolves to four IP addresses: 104.21.40.112, 172.67.185.135, 2606:4700:3031::ac43:b987 and 2606:4700:3032::6815:2870.

Additional host names — paito234crn.rest, denwerx.org, wettson.de.com and two others — share IP numbers with classcloud.tw.

Name Servers

classcloud.tw uses two name servers for its delegation: adaline.ns.cloudflare.com and coen.ns.cloudflare.com.

classcloud.tw shares its name server setup with other domains, including no2explodeextremereview.net, avitzur.me, 32win17.biz and two others.

classcloud.tw has at least partial name server overlap with other domains, such as blancoitsolutions.com, johnnoelbaillie.com, lucianadamascenorosa.workers.dev and two others.

It is common to find these name servers paired with the name servers rayden.ns.cloudflare.com.

Host names with 6 IP numbers:

Hostname adaline.ns.cloudflare.com directs to 108.162.194.49, 162.159.38.49 and 172.64.34.49 along with 3 other IP addresses.

Hostname coen.ns.cloudflare.com directs to 108.162.195.151, 162.159.44.151 and 172.64.35.151 along with 3 other IP addresses.