---
title: Headers
summary: >-
  These articles describe configuration settings and changes you can make to
  your headers when setting up Fastly services.
url: https://www.fastly.com/documentation/guides/full-site-delivery/headers
---

- [Adding or modifying headers on HTTP requests and responses](https://www.fastly.com/documentation/guides/full-site-delivery/headers/adding-or-modifying-headers-on-http-requests-and-responses/)
- [Enabling cross-origin resource sharing (CORS)](https://www.fastly.com/documentation/guides/full-site-delivery/headers/enabling-cross-origin-resource-sharing/)
- [Removing headers from backend response](https://www.fastly.com/documentation/guides/full-site-delivery/headers/removing-headers-from-backend-response/)
- [Setting Content Type based on file extension](https://www.fastly.com/documentation/guides/full-site-delivery/headers/setting-content-type-based-on-file-extension/)