> ## Documentation Index
> Fetch the complete documentation index at: https://blaxel-feat-keep-alive-timeout-clarification.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Custom domains

> Expose Blaxel agents, sandboxes, MCP servers, and other resources through your own custom domain names with managed TLS certificates.

Blaxel allows you to connect your own domain names to your Blaxel workspace to use when exposing resources.

When you register a domain, you also enable the use of wildcard subdomains for that domain. For example:

* If you register `mycompany.com`, you can use any `*.mycompany.com` subdomain to create custom URLs.
* If you register `preview.mycompany.com`, you can use any `*.preview.mycompany.com` subdomain to create custom URLs.
* And so on.

Each domain is uniquely assigned to a region. For example, if `preview.mycompany.com` is registered in region `us-pdx-1`, it is not possible to use it in region `eu-lon-1` (for example) or any other region.

In the [Blaxel Console](https://app.blaxel.ai/), navigate to **Network** > **Custom Domains** in the sidebar and add a new custom domain. Then, you'll need to configure DNS records with your domain provider. Finally, verify from within Blaxel: after DNS propagation completes, your custom domain will become fully usable.

<img src="https://mintcdn.com/blaxel-feat-keep-alive-timeout-clarification/hiuuJyAK_NBvGKVC/Infrastructure/Custom-domains/image.webp?fit=max&auto=format&n=hiuuJyAK_NBvGKVC&q=85&s=b3a19ebbe750ecc1853599d9d1391a3f" alt="image.webp" width="1623" height="460" data-path="Infrastructure/Custom-domains/image.webp" />

## Use a custom domain

Custom domains can currently be used for:

* [Sandbox previews](../Sandboxes/Preview-url)
* Agents: coming soon!
* MCP servers: coming soon!