Important
The Optimizely Visitor Group Criteria Pack was removed in the Optimizely Content Management System (CMS) version 12 release and the functionality has moved to _EPiServer.Cms.AspNetCore_ package.
Visitor groups are a simple way of adding personalized content to your website.


## Requirements
No additional license fee.
An Optimizely Content Management System (CMS) or Optimizely Customized Commerce installation.
See [Add-ons platform compatibility](🔗) for package and version information.Â
## Installation
CMS versions 7.5 and higher are [installed through NuGet](🔗)[](🔗).
## Documentation
[Personalization using visitor groups](🔗)