> For the complete documentation index, see [llms.txt](https://help.optinly.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.optinly.com/installation.md).

# INSTALLATION

- [WordPress](https://help.optinly.com/installation/wordpress.md): Learn how to install Optinly on a WordPress website.
- [Google Tag Manager](https://help.optinly.com/installation/google-tag-manager.md): Learn how to load the Optinly javascript via the Google Tag Manager
- [Custom Website](https://help.optinly.com/installation/custom-website.md): Learn how to install Optinly in a Custom Website.
- [Add More Domains](https://help.optinly.com/installation/add-more-domains.md): Learn how to add multiple domains to your Optinly account.
- [Additional Setup Details](https://help.optinly.com/installation/additional-setup-details.md): Here are a few additional setup information and details you should take a look into.