---
description: Reference information for custom error rules and error pages.
title: Reference
image: https://developers.cloudflare.com/og-docs.png
---

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> Documentation Index  
> Fetch the complete documentation index at: https://developers.cloudflare.com/rules/llms.txt  
> Use this file to discover all available pages before exploring further.

# Reference

Last updated Aug 24, 2026|Copy as Markdown|[View as Markdown](https://e8aee267.previews.developers.cloudflare.com/rules/custom-errors/reference/index.md)|[Agent setup](https://e8aee267.previews.developers.cloudflare.com/agent-setup/)

This section contains reference information for Custom Errors.

* [Custom Errors parameters](https://e8aee267.previews.developers.cloudflare.com/rules/custom-errors/reference/parameters/)
* [Error tokens](https://e8aee267.previews.developers.cloudflare.com/rules/custom-errors/reference/error-tokens/)
* [Error page types](https://e8aee267.previews.developers.cloudflare.com/rules/custom-errors/reference/error-page-types/)

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## On this page

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