What types of challenges does Cloudflare support?

Depending on the characteristics of a request, Cloudflare will choose an appropriate type of challenge, which may include but is not limited to: A non-interactive challenge page (similar to the current JS Challenge). A custom interactive challenge (such as click a button). Private Access Tokens (using recent Apple operating systems).

How do I stop a CloudFlare challenge from being presented?

Only the website owner can configure their Cloudflare settings to stop the challenge being presented. When observing a Cloudflare Challenge page, a visitor could: Successfully pass the challenge to visit the website. Cookies and JavaScript support are required in browser settings to pass the challenge.

Why does CF_clearance not work in Cloudflare challenges?

As a result, the cf_clearance cookie will not be sent with the request, causing it to fail to bypass a challenge page (non-interactive, managed, or interactive challenge). Cloudflare challenges cannot support the following: Browser extensions that modify the browser's User-Agent value or Web APIs such as Canvas and WebGL.