---
description: CSP directives supported by content security rules
title: Supported CSP directives
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---

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# Supported CSP directives

Last updated Aug 31, 2026|Copy as Markdown| [View as Markdown](https://fec4cfc0.previews.developers.cloudflare.com/client-side-security/rules/csp-directives/index.md)| [Agent setup](https://fec4cfc0.previews.developers.cloudflare.com/agent-setup/)

[Content security rules](https://fec4cfc0.previews.developers.cloudflare.com/client-side-security/rules/) support most Content Security Policy (CSP) directives, covering both monitored and unmonitored resources. You can use a content security rule to control other types of resources besides scripts and their connections, even though Cloudflare is not monitoring these resources.

Each CSP directive can contain multiple values, including:

- Schemes
- Hostnames
- URIs
- Special keywords between single quotes (for example, `'none'`)
- Hashes between single quotes (for example, `'sha384-oqVuAfXRKap7fdgcCY5uykM6+R9GqQ8K/uxy9rx7HNQlGYl1kPzQho1wx4JwY8wC'`)

Hostname and URI values support a `*` wildcard for the leftmost subdomain.

The following table lists the supported CSP directives and special values you can use in content security rules:

| Directive | Name in the dashboard | Supported special values | Monitored |
| --- | --- | --- | --- |
| `script-src` | Scripts | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | [Yes](https://fec4cfc0.previews.developers.cloudflare.com/client-side-security/detection/monitor-connections-scripts/) |
| `connect-src` | Connections | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | [Yes](https://fec4cfc0.previews.developers.cloudflare.com/client-side-security/detection/monitor-connections-scripts/) |
| `default-src` | Default | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | No |
| `img-src` | Images | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | No |
| `style-src` | Styles | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | No |
| `font-src` | Fonts | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | No |
| `object-src` | Objects | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | No |
| `media-src` | Media | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | No |
| `child-src` | Child | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | No |
| `form-action` | Form actions | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | No |
| `worker-src` | Workers | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | No |
| `base-uri` | Base URI | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | No |
| `manifest-src` | Manifests | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | No |
| `frame-src` | Frames | `'none'`<br>`'self'`<br>`'unsafe-inline'`<br>`'unsafe-eval'`<br>`'<HASH>'` | No |
| `frame-ancestors` | Frame ancestors | `'none'`<br>`'self'` | No |
| `upgrade-insecure-requests` | Upgrade insecure requests | N/A | No |

## More resources

For more information on CSP directives and their values, refer to the following resources in the MDN documentation:

- [Content-Security-Policy response header ↗](https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Content-Security-Policy)
- [CSP guide ↗](https://developer.mozilla.org/en-US/docs/Web/HTTP/Guides/CSP)

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