---
title: Reference · Cloudflare challenges docs
description: "Refer to the following pages for more information about Cloudflare
  Challenges:"
lastUpdated: 2025-10-13T17:48:00.000Z
chatbotDeprioritize: true
source_url:
  html: https://developers.cloudflare.com/cloudflare-challenges/reference/
  md: https://developers.cloudflare.com/cloudflare-challenges/reference/index.md
---

Refer to the following pages for more information about Cloudflare Challenges:

* [Challenge solve rate (CSR)](https://developers.cloudflare.com/cloudflare-challenges/reference/challenge-solve-rate/)
* [Private Access Tokens (PAT)](https://developers.cloudflare.com/cloudflare-challenges/reference/private-access-tokens/)
* [Supported browsers](https://developers.cloudflare.com/cloudflare-challenges/reference/supported-browsers/)
* [Supported languages](https://developers.cloudflare.com/cloudflare-challenges/reference/supported-languages/)
