> ## Documentation Index
> Fetch the complete documentation index at: https://dub.co/llms.txt
> Use this file to discover all available pages before exploring further.

# How to set a not found URL for your custom domains

> Learn more about how you can set a custom not found URL for your domains on Dub.

<Tip>
  This feature is only available on [Pro plans and
  above](https://dub.co/pricing).
</Tip>

By default, when a user visits a short link that doesn't exist on Dub, they will see a placeholder "Link Not Found" page:

<Frame>
  <img src="https://assets.dub.co/changelog/not-found-support.jpg" alt="Placeholder 404 page on Dub" />
</Frame>

If you are [using a custom domain on Dub](/help/article/how-to-add-custom-domain), you can set a custom URL to redirect users to when a short link under your domain is not found.

To set a custom not found URL for your domains, you can follow the steps below:

1. Go to your [workspace Domains settings tab](https://app.dub.co/domains).
2. Click on the `⋮` button next to the domain you want to set a custom not found URL for.
3. Select **Edit Domain** to edit the domain settings.
4. Toggle the **Not Found URL** section to enable it, and enter the custom URL to redirect users to when a short link under your domain is not found.
5. Click on the **Save changes** button to save the changes.

<Frame>
  <img src="https://assets.dub.co/help/set-not-found-url-for-domain.png" alt="Setting a not found URL for a custom domain" />
</Frame>