Expect the things listed here to break often, not work as described, or just explode.
Stuff Link to heading
- obfuscated email - plain email address
- header modification - removed
cf-connecting-ip; addedabc - cname setup, ssl for saas
- waiting room
- httpbin
- regional services: tls decryption in U.S. only - tls decryption in EU only
- bulk redirects
- websocket echo server, visit
/.ws - IPv4 only endpoint | IPv6 only endpoint
- your IPv4 | your IPv6
Cache and CDN Things Link to heading
See also default caching behavior.
default behavior, should always be a HIT:
curl -sI -X GET https://clumsy.dev/caching/cache1.jpg | grep cf-cache-status
cache-control set to private, should always return a cache MISS:
curl -sI -X GET https://clumsy.dev/caching/cache2.jpg | grep -E 'cf-cache-status|cache-control'
Cache Rules Link to heading
bypass cache with a query string:
This should always return DYNAMIC:
curl -sI -X GET "https://clumsy.dev/caching/cache1.jpg?v=1" | grep cf-cache-status
ignore cache-control header, cache regardless using a cache rule when a specific user-agent is being used. Should always be a HIT:
curl -sI -X GET -A "cacheme" https://clumsy.dev/caching/cache2.jpg | grep -E 'cf-cache-status|cache-control'
Without the user-agent it is not cached:
curl -sI -X GET https://clumsy.dev/caching/cache2.jpg | grep -E 'cf-cache-status|cache-control'
Image Things Link to heading
- polish images (lossy)
- image resizing examples - mirage version (disable cache and enable slow 3g in chrome, use mobile device)
- crop & trim
- some video stream or some here
- image delivery 1 image delivery 2 - browse the page from a desktop, tablet and/or mobile device, different image versions will automatically be served
AI Things Link to heading
Workers Things Link to heading
- check all worker tagged posts
- check if iCloud Private Relay is enabled
- worker service bindings
- all things headers being sent and available
- some cors headers
- generate token, verify token
- browser / puppeteer workers
- iata airport code lookup
Cloudflare for SaaS / SSL for SaaS Link to heading
- access custom metadata with Workers, look for
x-customer-id| GitHub example worker
cache:
kv:
durable objects:
R2 Things Link to heading
WAF Things Link to heading
- trigger WAF
- block EU
- rate limiting, open this page and reload a few times repeatedly
- custom response based on user agent - open this site in a desktop browser and try curl
curl https://clumsy.dev/custom-response
API Gateway / Shield Link to heading
Bot Management / Turnstile / Challenges Link to heading
Ruleset Engine Link to heading
origin rules:
- override origin port (in this example
:9443)
Data Localization Suite / DLS Link to heading
- SSL termination in: Australia
- SSL termination in: Canada
- SSL termination in: European Union
- SSL termination in: European Union ISO Certified
- SSL termination in: FedRamp
- SSL termination in: Germany
- SSL termination in: India
- SSL termination in: Japan
- SSL termination in: Singapore
- SSL termination in: South Korea
- SSL termination in: United States
Zero Trust Link to heading
Cloudflare Access Link to heading
- app launcher - logout
- access block
- isolated browser
- start isolated browser
- login via sso required
- wiki, behind access
- warp as an authentication method | get authenticated username/email
- access behind a worker - you can also access it with curl using a service token:
curl -s -H "CF-Access-Client-Id: $stCliWorkerAccess" -H "CF-Access-Client-Secret: $stCliWorkerSecret" https://cli-access.clumsy.dev/
- validate JWT token - with header information, can also be accessed via curl with a service token
curl -s -H "CF-Access-Client-Id: $stCliWorkerAccess" -H "CF-Access-Client-Secret: $stCliWorkerSecret" https://jwt.clumsy.dev/
Data Loss Prevention / Zero Trust Policies Test Link to heading
The following require some Zero Trust policies configured in your account to work.
- all sorts of dlp / data loss prevention tests are here, also tenant control and more features are enabled there
- submit a credit card number in here - open this in browser isolation with DLP enabled, and submit something like
4242424242424242 - upload a pdf here - open this in browser isolation and try uploading a pdf
- tenant control - this can only be accessed with a special header pair
- device posture - you need to be connected to WARP to access this