---
title: Reference
description: Find Cloudflare reference material including network details, HTTP headers, policies, and troubleshooting resources.
image: https://developers.cloudflare.com/core-services-preview.png
---

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

[Skip to content](#%5Ftop) 

# Reference

* [ /cdn-cgi/ endpoint ](https://developers.cloudflare.com/fundamentals/reference/cdn-cgi-endpoint/)
* [ Account and domain management best practices ](https://developers.cloudflare.com/fundamentals/reference/best-practices/)
* [ Cloudflare and Google Analytics ](https://developers.cloudflare.com/fundamentals/reference/google-analytics/)
* [ Cloudflare crawlers ](https://developers.cloudflare.com/fundamentals/reference/cloudflare-site-crawling/)
* [ Cloudflare HTTP headers ](https://developers.cloudflare.com/fundamentals/reference/http-headers/)
* [ Cloudflare Ray ID ](https://developers.cloudflare.com/fundamentals/reference/cloudflare-ray-id/)
* [ Cloudy AI agent (beta) ](https://developers.cloudflare.com/fundamentals/reference/cloudy-ai-agent/)
* [ Connection limits ](https://developers.cloudflare.com/fundamentals/reference/connection-limits/)
* [ Cryptographic Attestation of Personhood ](https://developers.cloudflare.com/fundamentals/reference/cryptographic-personhood/)
* [ Error responses ](https://developers.cloudflare.com/fundamentals/reference/error-responses/)
* [ Glossary ](https://developers.cloudflare.com/fundamentals/reference/glossary/)
* [ Markdown for Agents ](https://developers.cloudflare.com/fundamentals/reference/markdown-for-agents/)
* [ Migration guides ](https://developers.cloudflare.com/fundamentals/reference/migration-guides/)
* [ Network Layers ](https://developers.cloudflare.com/fundamentals/reference/network-layers/)
* [ Network ports ](https://developers.cloudflare.com/fundamentals/reference/network-ports/)
* [ Partners ](https://developers.cloudflare.com/fundamentals/reference/partners/)
* [ Policies ](https://developers.cloudflare.com/fundamentals/reference/policies-compliances/)
* [ Redirects ](https://developers.cloudflare.com/fundamentals/reference/redirects/)
* [ Abuse ](https://developers.cloudflare.com/fundamentals/reference/report-abuse/)
* [ Scans and penetration testing policy ](https://developers.cloudflare.com/fundamentals/reference/scans-penetration/)
* [ SDK ecosystem support policy ](https://developers.cloudflare.com/fundamentals/reference/sdk-ecosystem-support-policy/)
* [ TCP connections ](https://developers.cloudflare.com/fundamentals/reference/tcp-connections/)
* [ Troubleshooting ](https://developers.cloudflare.com/fundamentals/reference/troubleshooting/)
* [ Under Attack mode ](https://developers.cloudflare.com/fundamentals/reference/under-attack-mode/)

```json
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/directory/","name":"Directory"}},{"@type":"ListItem","position":2,"item":{"@id":"/fundamentals/","name":"Cloudflare Fundamentals"}},{"@type":"ListItem","position":3,"item":{"@id":"/fundamentals/reference/","name":"Reference"}}]}
```