---
title: Utilities
summary: null
url: https://www.fastly.com/documentation/reference/api/utils
---

This section of the API documentation covers various utilities and extra functionality we provide in addition to the configuration services.

- [Check content status](https://www.fastly.com/documentation/reference/api/utils/content/) - Fastly makes it possible to see which version of a particular URL is cached on each edge server.
- [Diff](https://www.fastly.com/documentation/reference/api/utils/diff/) - See the line-by-line changes in configuration between two different versions of a service.
- [Docs](https://www.fastly.com/documentation/reference/api/utils/docs/) - Documentation of the endpoints that return the Fastly API Documentation.
- [POPs](https://www.fastly.com/documentation/reference/api/utils/pops/) - List Fastly POPs and their locations.
- [Public IP List](https://www.fastly.com/documentation/reference/api/utils/public-ip-list/) - To help you manage firewall rules for connections from Fastly to your origin, we provide access to the <a href="https://api.fastly.com/public-ip-list">list of Fastly's assigned IP ranges</a>. Changes to this list will be announced in advance as an "IP address announcement" along with other service announcements to our <a href="https://fastlystatus.com/">status page</a>, which you can <a href="https://www.fastly.com/documentation/guides/full-site-delivery/performance/fastlys-service-status/#subscribing-to-notifications">subscribe</a> to. This list is exhaustive and includes all Fastly-owned IP ranges, so any client connections, log streaming reports, and origin connections should use these addresses.
- [Sudo mode](https://www.fastly.com/documentation/reference/api/utils/sudo/) - Sudo mode allows users to perform privileged actions after going through a re-authentication flow.