> For the complete documentation index, see [llms.txt](https://docs.jentis.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.jentis.com/jentis-dcp-elements/account-settings/container-administration/create-a-container.md).
# Create a Container
You can create a new container on the JENTIS Platform in three easy steps: **Basic Settings**, **Advanced Settings**, and **Tracking Configuration**. Navigate to the **Settings** menu, go to the **Containers** section, and click on **Add New Container** to start your new container configuration.
In the basic settings, you will configure:
* **Container name** – A descriptive name for your container.
* **Website domain** – The URL of the domain to connect to the container, f.e., `example.com`.
{% hint style="warning" %}
Be aware that you can not change the **website domain once the container is created**.
{% endhint %}
* *Optional:* **Consentbar (CMP)** – Select from the list of supported consent bars. To activate tracking, you must configure your CMP on the **Legal Hub** menu. For more information, read [JENTIS CMP Connectors](/consent-center/how-jentis-handles-consent/jentis-cmp-connectors.md)
* *Optional:* **Cookie Lifetime Extender** - This feature allows you to preserve cookie duration in the face of browsers' privacy restrictions, such as Safari’s ITP, ensuring your tracking remains accurate, durable, and compliant. Read more: [Cookie Lifetime Extender](/key-features/cookie-lifetime-extender.md)
In the advanced settings, you can optionally configure:
* **Preview URL** – Set a custom URL instead of the website domain for the container configuration preview session. If this field is left empty, the **website domain** configured on the basic settings will be used.
* **Main Domain Cookie** - This feature allows you to configure whether first-party identifiers (e.g., JENTIS User-ID) are implemented at your website’s main domain or subdomain level in your containers. This enables the identification of users across the main domain and its subdomains. For more information, read: [Main Domain Cookie](/key-features/main-domain-cookie.md)
Click on the **Create** button to save your new container.
---
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