---
title: Reference
description: Reference information for Spectrum, including analytics, logs, and limitations.
image: https://developers.cloudflare.com/core-services-preview.png
---

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

[Skip to content](#%5Ftop) 

# Reference

For more information related to Spectrum, refer to the sections below.

* [ Analytics ](https://developers.cloudflare.com/spectrum/reference/analytics/)
* [ Configuration options ](https://developers.cloudflare.com/spectrum/reference/configuration-options/)
* [ Event logs ](https://developers.cloudflare.com/spectrum/reference/logs/)
* [ Limitations ](https://developers.cloudflare.com/spectrum/reference/limitations/)
* [ Settings by plan ](https://developers.cloudflare.com/spectrum/reference/settings-by-plan/)
* [ Simple Proxy Protocol Header ](https://developers.cloudflare.com/spectrum/reference/simple-proxy-protocol-header/)
* [ Why Spectrum-enabled hostnames might appear in Layer 7 Analytics ](https://developers.cloudflare.com/spectrum/reference/layer-7-analytics/)

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```