> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://copilhost.crisp.help/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).

# Creating a subdomain

Creating a subdomain is very simple:

1. Go to the **"Domains"** tab, click **"New"**, and then select **"Create a subdomain."**
A pop-up will appear:
**On the left:** Enter the label (prefix) for your subdomain (e.g., "dev" or "shop").
**On the right:** Select the primary domain it belongs to.

2. You can choose to **link a site directly** to this subdomain at this stage if you wish.

3. Click **"Add subdomain"** to finalize the creation.

4. If you choose not to link the subdomain to a site immediately, you can do so later. Feel free to check out [this article](https://copilhost.crisp.help/en/article/how-to-link-a-domain-to-your-site-11xvvb7/) for more details on linking sites.