Cloudflare WAF Challenge | cf_clearance Cookie API

Handle Cloudflare WAF JavaScript challenges and generate valid cf_clearance cookies. Resolve 403 and 503 errors.

The Challenge

JavaScript Challenge Wall

Cloudflare WAF presents JavaScript challenges that validate browser capabilities before granting access via cf_clearance cookies.

Our Solution

WAF Challenge Resolution

Our API handles the Cloudflare WAF JavaScript challenge, generating valid cf_clearance cookies for continued access.

  • cf_clearance cookie generation
  • JavaScript challenge solving
  • Browser validation handling
  • 5-second challenge support

Technical Details

Key parameters for integration.

Cookiecf_clearance
Challenge TypeJavaScript Challenge
Common Errors Solved
403 Forbidden503 Service Unavailable

Integration is easy

Stop fighting with headless browsers. Get the cookie you need in a single API call and attach it to your HTTP client.

integration.js
const response = await fetch('/v1/tasks/submit', {
  method: 'POST',
  body: JSON.stringify({
    service: 'cloudflare_waf',
    url: 'https://example.com'
  })
});

// Returns valid cf_clearance