---
description: Reference information for Spectrum, including analytics, logs, and limitations.
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/spectrum/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://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/spectrum/reference/index.md)|[Agent setup](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/agent-setup/)

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

* [Analytics](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/spectrum/reference/analytics/)
* [Configuration options](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/spectrum/reference/configuration-options/)
* [Error codes](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/spectrum/reference/error-codes/)
* [Event logs](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/spectrum/reference/logs/)
* [Limitations](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/spectrum/reference/limitations/)
* [Settings by plan](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/spectrum/reference/settings-by-plan/)
* [Simple Proxy Protocol Header](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/spectrum/reference/simple-proxy-protocol-header/)
* [Troubleshooting](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/spectrum/reference/troubleshooting/)
* [Why Spectrum-enabled hostnames might appear in Layer 7 Analytics](https://docs-durable-objects-instance-replaced-errors.previews.developers.cloudflare.com/spectrum/reference/layer-7-analytics/)

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