> For the complete documentation index, see [llms.txt](https://docs.mediarithmics.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.mediarithmics.io/audience-and-activation/build-your-audiences/segment-reference/segment-types/pixel-segment.md).

# Pixel segment

The segment type populated by users who load an invisible pixel on your pages.

## What it is

A **Pixel segment** is automatically populated with any user that hits an invisible pixel provided by mediarithmics. You place the pixel on a page; whoever loads that page joins the segment.

It is the shortest path from "this page matters to me" to an audience, because it needs no query and no schema knowledge - only the ability to paste a snippet where you want it.

## What is specific to this type

* **The snippet is generated for you.** It appears at the bottom of the segment's configuration page once the segment is saved.
* **Default lifetime applies.** Users leave the segment that long after entering it, which is how you keep a pixel-fed audience from growing indefinitely.
* **It is always persisted.**

See [Segment properties](/audience-and-activation/build-your-audiences/segment-reference.md#segment-properties).

## Creating one

{% stepper %}
{% step %}

### Choose the type

In the segment creation wizard, select **User Pixel** under *Other segment types*.
{% endstep %}

{% step %}

### Name it

Give the segment a name, and fill in the optional fields if you want them.
{% endstep %}

{% step %}

### Save, then collect the snippet

Click **Save**. A code snippet appears at the bottom of the configuration page. Paste it on the pages whose visitors should join the segment.
{% endstep %}
{% endstepper %}

## Related pages

<table data-view="cards" data-search="false"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Collect users from a tagged page</strong></td><td>Creating the segment, including where to place the pixel and how to check it works.</td><td><a href="/audience-and-activation/build-your-audiences/collect-users-from-a-tagged-page.md">Collect users from a tagged page</a></td></tr></tbody></table>


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