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

# Use Advanced Filtering in Scenes

> How to add URL exceptions to Allow Mode and Block Mode Scenes in GoGuardian Teacher.

Advanced Filtering lets you create exceptions within a Scene's allowed or blocked website list. When a site is allowed or blocked at the domain level, Advanced Filtering gives you control over specific pages or subdomains within that site.

## How Advanced Filtering Works

For both Allow Mode and Block Mode Scenes, you can allow or block entire websites. Advanced Filtering adds a second layer by letting you carve out exceptions for specific pages within those sites.

**Example:** A teacher allows `google.com` across the board but wants to block `sites.google.com` specifically. Advanced Filtering handles that exception.

The **Advanced Filtering** button is located in the upper right of the Scene creation window.

## Add Exceptions to an Allow Mode Scene

In Allow Mode, everything is blocked except for what you manually allow.

For example, adding `*Google*` to an Allow Mode Scene allows any Google website or subdomain, including:

* `docs.google.com`
* `google.com/images`
* `forms.google.com`
* `sites.google.com`
* and many more

To block a specific subdomain within an otherwise allowed site, add it as an exception.

1. In the Scene creation window, click **Advanced Filtering** in the upper right.

2. Enter the URL you want to block as an exception (for example, `sites.google.com`) into the input field.

3. Click **Add**. The URL appears in the **Exceptions** list.

4. When you've added all exceptions, click **Done**. The exceptions appear on the right side of the Scene editor, labeled **Advanced Filters**.

## Add Exceptions to a Block Mode Scene

In Block Mode, all websites are allowed except for what you add to the blocked list.

For example, a teacher can add `YouTube.com` to a Block Mode Scene to block all of YouTube. With Advanced Filtering, individual YouTube video URLs can be added as exceptions to allow access to those specific videos while keeping the rest of YouTube blocked.

1. In the Scene creation window, click **Advanced Filtering** in the upper right.

2. Enter the specific URL you want to allow as an exception into the input field.

3. Click **Add**, then click **Done** to save the exception.

4. The exception appears in the **Advanced Filters** section on the right side of the Scene editor.

<Note>
  For YouTube exceptions, you can allow access to individual video URLs. Adding a YouTube channel URL only allows access to that channel's page. It does not allow all videos from that channel.
</Note>

## Resources

<CardGroup cols={2}>
  <Card title="Create and Apply a Scene" href="/products/teacher/create-and-apply-a-scene">
    Build a Scene and apply it to a classroom session.
  </Card>

  <Card title="Use Wildcards in Scenes" href="/products/teacher/use-wildcards-in-scenes">
    Use wildcard patterns to match groups of URLs in a Scene.
  </Card>

  <Card title="Components of a Scene" href="/products/teacher/components-of-a-scene">
    Understand what makes up a Scene and how each part works.
  </Card>

  <Card title="Scenes Overview" href="/products/teacher/scenes-overview">
    Learn how Scenes control student web access during a session.
  </Card>
</CardGroup>