# 404 page

A **404 page** is a standard error page displayed by a website when a user tries to access a URL that doesn't exist or has no corresponding content. Its benefits include providing a user-friendly error message, keeping users on your website by redirecting them to other pages, optimizing SEO through internal links, and offering contact or help information. It enhances user experience and engagement while addressing navigation errors.

<figure><img src="/files/wBWG3hZGsbO2IqW39WBd" alt=""><figcaption></figcaption></figure>

{% hint style="success" %}
Steps

1. In the theme editor (**Customize**), open the template selector.
2. Select **Others**, then **404 page**
3. On the left-sidebar, add **Main 404.**
4. Make necessary changes > **Save.**
   {% endhint %}


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# Agent Instructions: 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://nextsky.gitbook.io/agile-theme/other-pages/404-page.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.