challenges.cloudflare.com - dns.ninja

challenges.cloudflare.com

DNSSEC⚠️ Not signed
A2606:4700::6812:5e29🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6812:5f29🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.94.41Cloudflare104.18.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.18.95.41Cloudflare104.18.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScarol.ns.cloudflare.com ⭐ ⚠️ Not in parent delegation
A2606:4700:50::adf5:3a50🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcarol.ns.cloudflare.com
A2803:f800:50::6ca2:c050🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRcarol.ns.cloudflare.com
A2a06:98c1:50::ac40:2050🇺🇸 Cloudflare2a06:98c1:50::/45
PTRcarol.ns.cloudflare.com
A108.162.192.80🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcarol.ns.cloudflare.com
A172.64.32.80🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcarol.ns.cloudflare.com
A173.245.58.80🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRcarol.ns.cloudflare.com
NSchuck.ns.cloudflare.com ⚠️ Not in parent delegation
A2606:4700:58::adf5:3b56🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchuck.ns.cloudflare.com
A2803:f800:50::6ca2:c156🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRchuck.ns.cloudflare.com
A2a06:98c1:50::ac40:2156🇺🇸 Cloudflare2a06:98c1:50::/45
PTRchuck.ns.cloudflare.com
A108.162.193.86🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchuck.ns.cloudflare.com
A172.64.33.86🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchuck.ns.cloudflare.com
A173.245.59.86🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRchuck.ns.cloudflare.com
TXTca3-64f12aefd8ea4084b6f3f75071b24351
TXTca3-ec83612a81d347f3bad44a4cd36ee54e
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.18.94.41, 104.18.95.41
IPv6 hints2606:4700::6812:5e29, 2606:4700::6812:5f29
SOAcarol.ns.cloudflare.comdns@cloudflare.com serial=2411233860

cloudflare.com

DNSSEC⚠️ Not signed
A2606:4700::6810:84e5🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700::6810:85e5🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.16.132.229Cloudflare104.16.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.16.133.229Cloudflare104.16.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSns3.cloudflare.com ⭐
NSns4.cloudflare.com
NSns5.cloudflare.com
NSns6.cloudflare.com
NSns7.cloudflare.com
MXmxa.global.inbound.cf-emailsecurity.net ⭐
MXmxb.global.inbound.cf-emailsecurity.net ⭐
MXmxa-canary.global.inbound.cf-emailsecurity.net(10)
MXmxb-canary.global.inbound.cf-emailsecurity.net(10)
TXTDirectFedAuthUrl=https://cloudflare-security.cloudflareaccess.com/cdn-cgi/acc...
TXTDirectFedAuthUrl=https://cloudflare-security.cloudflareaccess.com/cdn-cgi/acc...
TXTMS=ms70274184
TXTZOOM_verify_7LFBvOO9SIigypFG2xRlMA
TXT_neqmkgaq1lq9it5s8qmetrhbnu121wb
TXT_saml-domain-challenge.2dc00405-79cd-457b-b288-a119c6f0c7b7.71996d53-d178-4ba...
TXT_wkjc0fot0d7qrvrdt78bxkj2e2o67d2
TXTapple-domain-verification=DNnWJoArJobFJKhJ
TXTasv=894f6d1f9f83bcf44e4b1bc40bc1c4aa
TXTatlassian-domain-verification=WxxKyN9aLnjEsoOjUYI6T0bb5vcqmKzaIkC9Rx2QkNb751G...
TXTcanva-site-verification=oOyaVnHC-OiFoR1BPvetNA
TXTcisco-ci-domain-verification=27e926884619804ef987ae4aa1c4168f6b152ada84f4c8bf...
TXTcreatopy-domain-verification=97d2ca50-9b6f-4a21-9bdb-fbb630e4cec7
TXTdatabank-domain-verification-hkehd2=fzgu4kmbZwMoW99zENgO4u8NL
TXTdocker-verification=c578e21c-34fb-4474-9b90-d55ee4cba10c
TXTdrift-domain-verification=f037808a26ae8b25bc13b1f1f2b4c3e0f78c03e67f24cefdd4e...
TXTfacebook-domain-verification=h9mm6zopj6p2po54woa16m5bskm6oo
TXTgoogle-site-verification=C7thfNeXVahkVhniiqTI1iSVnElKR_kBBtnEHkeGDlo
TXTgoogle-site-verification=ZdlQZLBBAPkxeFTCM1rpiB_ibtGff_JF5KllNKwDR9I
TXTliveramp-site-verification=EhH1MqgwbndTWl1AN64hOTKz7hc1s80yUpchLbgpfY0
TXTlogmein-verification-code=b3433c86-3823-4808-8a7e-58042469f654
TXTmiro-verification=bdd7dfa0a49adfb43ad6ddfaf797633246c07356
TXTonetrust-domain-verification=bd5cd08a1e9644799fdb98ed7d60c9cb
TXTstatus-page-domain-verification=r14frwljwbxs
TXTstripe-verification=5096d01ff2cf194285dd51cae18f24fa9c26dc928cebac3636d462b4c...
TXTstripe-verification=bf1a94e6b16ace2502a4a7fff574a25c8a45291054960c883c59be39d...
TXTuber-domain-verification=58086039-150a-42a4-a4be-b4032921aa0f
TXTv=spf1 ip4:199.15.212.0/22 ip4:173.245.48.0/20 include:_spf.google.com includ...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.16.132.229, 104.16.133.229
IPv6 hints2606:4700::6810:84e5, 2606:4700::6810:85e5
SOAns3.cloudflare.comdns@cloudflare.com serial=2411244022
WOT: UNKNOWN (67/100)
rank #149 globally
rank #97 in the tld

cloudflare.com

Cloudflare.com is the primary website of Cloudflare, Inc., a company that provides CDN, DNS, DDoS mitigation and security services for websites worldwide.

Key facts

  • Owner / operator: Cloudflare, Inc.
  • TLD:.com— gTLD
  • Primary purpose: CDN, DDoS protection, DNS, and web security services
  • Status: active

History

YearEvent
2009Cloudflare founded by Matthew Prince, Lee Holloway, and Michelle Zatlyn
2010Public launch of Cloudflare’s CDN and security services
2019Cloudflare completed its IPO on the New York Stock Exchange

Notable subdomains or services

  • *.workers.dev– Cloudflare Workers serverless platform
  • *.pages.dev– Cloudflare Pages static site hosting

Related domains

  • cloudflare.net– used for certain Cloudflare API and service endpoints
🔒 HSTS Preload (+subdomains)
Semrush Rank:#1,279 Keywords:576,617 Traffic:2,084,359/mo
WOT: UNKNOWN (87/100)
📈 Tranco rank: #2
cloudflare.com - Tranco Rank (30d: →±0)1234Jun 28Jul 8Jul 18Jul 28Aug 7Rank#2#2

Cloudflare is a web infrastructure and security company founded in 2009, providing CDN, DDoS protection, DNS services, and zero-trust security. The company operates one of the world's largest networks, spanning 330+ cities across 125+ countries, protecting approximately 20% of all websites and blocking over 234 billion cyber threats daily.

The company organizes its offerings around three pillars: Connect (SASE and workspace security), Protect (WAF, DDoS, bot management), and Build (developer platform). Cloudflare runs the popular 1.1.1.1 public DNS resolver and provides industry-leading authoritative DNS hosting. Their developer platform includes Workers (serverless computing), R2 (object storage), D1 (SQL databases), and Workers AI for edge-based machine learning.

Recent developments include an AI Security Suite for protecting generative and agentic AI applications, acquisitions of Replicate (AI cloud) and Astro (web framework), and recognition as a Leader in Forrester's Web Application Firewall Wave and Visionary in Gartner's SASE Magic Quadrant.

Subdomains

hagen.challenges.cloudflare.com
brunhild.challenges.cloudflare.com

Same first word

challenges.ai
challenges.app
challenges.com
challenges.pl
challenges.fr
challenges.ca
challenges.re
challenges.dk
challenges.ru
challenges.digital
challenges.info
challenges.co
challenges.at
challenges.nl
challenges.fitness
challenges.com.au
challenges.de
challenges.eu
challenges.pro
challenges.press
challenges.club
challenges.s3.amazonaws.com
challenges.be
challenges.tn
challenges.mk
challenges.world
challenges.life
challenges.org
challenges.net
challenges.today
challenges.it
challenges.my
challenges.us

Similar names

sellchange.com
schallenge.com

DNS History

6 records (6 active, 0 former)

NScarol.ns.cloudflare.comchuck.ns.cloudflare.comA104.18.94.41104.18.95.412606:4700::6812:5e292606:4700::6812:5f29
●NScarol.ns.cloudflare.com2026-03-01 → 2026-08-09 · 2 obs
● 2026-03-01 23:08:48
● 2026-08-09 12:57:30
●NSchuck.ns.cloudflare.com2026-03-01 → 2026-08-09 · 2 obs
● 2026-03-01 23:08:48
● 2026-08-09 12:57:30
●A104.18.94.412026-03-01 → 2026-08-09 · 2 obs
● 2026-03-01 23:08:48
● 2026-08-09 12:57:30
●A104.18.95.412026-03-01 → 2026-08-09 · 2 obs
● 2026-03-01 23:08:48
● 2026-08-09 12:57:30
●A2606:4700::6812:5e292026-03-01 → 2026-08-09 · 2 obs
● 2026-03-01 23:08:48
● 2026-08-09 12:57:30
●A2606:4700::6812:5f292026-03-01 → 2026-08-09 · 2 obs
● 2026-03-01 23:08:48
● 2026-08-09 12:57:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cloudflare.comns3.cloudflare.com, ns5.cloudflare.com, ns4.cloudflare.com, ns6.cloudflare.com...-

✅ Authoritative Response

Server:162.159.0.33

NS records: ns3.cloudflare.com, ns5.cloudflare.com, ns4.cloudflare.com, ns6.cloudflare.com, ns7.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cloudflare.com (unsigned zone)

⏱️ Timing

Total: 194ms | Queries: -

📄 Records

TypeCountSample Data
A2104.18.95.41, 104.18.94.41
AAAA22606:4700::6812:5f29, 2606:4700::6812:5e29
NS2carol.ns.cloudflare.com, chuck.ns.cloudflare.com
TXT2ca3-64f12aefd8ea4084b6f3f75071b24351, ca3-ec83612a81d347f3bad44a4cd36ee54e
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1carol.ns.cloudflare.com dns.cloudflare.c

Analysis

Hierarchy

challenges.cloudflare.com is the parent domain of hagen.challenges.cloudflare.com and brunhild.challenges.cloudflare.com.

IP Addresses

challenges.cloudflare.com resolves to four IP addresses: 104.18.94.41, 104.18.95.41, 2606:4700::6812:5e29 and 2606:4700::6812:5f29.

Name Servers

DNS delegation for challenges.cloudflare.com points to two name servers: carol.ns.cloudflare.com and chuck.ns.cloudflare.com.

challenges.cloudflare.com shares its name server setup with other domains, including itsupportsecurity.com, acnweb.net, kanapp.net and two others.

challenges.cloudflare.com shares at least some of its name servers with other domains, including machinesafetyspecialists.com, jasaim.com, craftdome.app and two others.

Host names with 6 IP numbers:

carol.ns.cloudflare.com has IP addresses 108.162.192.80, 172.64.32.80 and 173.245.58.80, plus 3 other.

chuck.ns.cloudflare.com has IP addresses 108.162.193.86, 172.64.33.86 and 173.245.59.86, plus 3 other.