---
description: Protect your website from DDoS attacks, origin server threats, and other security risks with Cloudflare.
title: Security
image: https://developers.cloudflare.com/fundamentals/security/og.png?v=e7c67f2f5ff69bdb
---

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> 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.

# Security

Last updated Apr 20, 2026|Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/fundamentals/security/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

- [Prevent DDoS attacks](https://developers.cloudflare.com/learning-paths/prevent-ddos-attacks/concepts/)
- [Protect your origin server](https://developers.cloudflare.com/fundamentals/security/protect-your-origin-server/)
- [Recovering from a hacked site](https://developers.cloudflare.com/fundamentals/security/recovering-from-hacked-site/)
- [Scan for PCI compliance](https://developers.cloudflare.com/fundamentals/security/pci-scans/)
- [Secure your website](https://developers.cloudflare.com/learning-paths/application-security/account-security/)
- [Under a DDoS attack?](https://developers.cloudflare.com/fundamentals/security/under-ddos-attack/)

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## On this page

[![](https://developers.cloudflare.com/_astro/logo.te5VL_aD.svg)Docs](https://developers.cloudflare.com/)

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