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

# CNAME

### Set up your custom domain (CNAME)

You can use your own subdomain (like `experts.yourcompany.com`) to access your ExpertFile content. Setting this up only takes a few minutes.

#### Step 1: Choose your subdomain

Enter the **subdomain** you want to use in the field below.

**Examples:**

* `experts.yourcompany.com`
* `insights.yourcompany.com`
* `newsroom.yourcompany.com`

<figure><img src="/files/EmVm3eJRXtdd96csQ9BZ" alt=""><figcaption></figcaption></figure>

> ⚠️ Note: You must use a **subdomain**. Root domains (like `yourcompany.com`) are not supported.

#### Step 2: Update your DNS settings

Log in to your DNS provider (such as GoDaddy, Cloudflare, Namecheap, or your hosting provider) and create a new **CNAME record**.

Use the following values:

| Setting            | Value                                 |
| ------------------ | ------------------------------------- |
| **Type**           | CNAME                                 |
| **Host / Name**    | Your chosen subdomain (e.g. `expert`) |
| **Target / Value** | `greenlock.expertfile.com`            |
| **TTL**            | Default or Auto                       |

Save your changes.

***

#### Step 3: Wait for DNS to propagate

DNS changes can take anywhere from a few minutes up to 24 hours to fully propagate, depending on your provider.

Once propagation is complete, your custom domain will automatically become active and secured with HTTPS.

***

#### Need help?

If you’re unsure where to add a CNAME record, check your DNS provider’s help docs or contact our support team—we’re happy to help you get set up.