> For the complete documentation index, see [llms.txt](https://gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.com/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gitbook-open-v2-preview.gitbook.workers.dev/url/gitbook.com/docs/help-center/published-documentation/adaptive-content/which-authentication-method-should-i-use-for-adaptive-content.md).

# Which authentication method should I use for Adaptive content?

It depends on how you want to control access:

* Need public + private content? → Use Signed Cookies
* Simple personalization without auth? → Use URL Parameters
* Entire site private? → Use Authenticated Access Integration
* Already use feature flags? → Use Feature Flag provider


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