> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://docs.intractive.app/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Force Authentication

You can protect your whole platform by enabling 'Force Authentication'.

![](https://storage.crisp.chat/users/helpdesk/website/-/1/a/0/e/1a0ea33fdfe47400/bdf250af-d847-49e5-93bb-c500e9_1v1ypeh.png)

Go Project, then to 'Project settings' in the top menu, and scroll down.  
Check the box ✅ and press 'Save'.

An extra option becomes available: Login domains.  
Here, you can decide what email addresses to whitelist. Meaning that only users with an email from certain domain will be allowed to sign up and log in.

![](https://storage.crisp.chat/users/helpdesk/website/-/5/c/e/0/5ce086d06e92600/d7888a39-13fe-496e-8898-9c4e61_fawnd7.png)

In this example, all users with a @gmail.com account can log in.

You can whitelist multiple domains.

Don't forget to press 'Save' when you're done 😉