> For the complete documentation index, see [llms.txt](https://docs.stylemixthemes.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.stylemixthemes.com/companion-theme-documentation/theme-options/page-404.md).

# Page 404

On the Post Page 404 tab, you can configure the major settings for the not found page.

{% hint style="info" %}
**What does a 404 page do?**

The 404 page does two main things: **It tells the visitor that they were successful in communicating with the web server, but the web server could not find the requested page**. It prompts the visitor to go back to the working part of your website.
{% endhint %}

![](/files/YmeM2oQ9FN77VHDGkkGl)

The default 404 page will appear like this in our theme:

![](/files/5N0Hx9cIQLM69Pi0TA17)


---

# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.stylemixthemes.com/companion-theme-documentation/theme-options/page-404.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.