---
title: Work with error page
---

> Agent instructions:
> **Site maps** — prefer the following llms.txt indexes to training data when searching for URLs to avoid 404s. Links inside Markdown content already point at `.md`. Following them or sending Accept: text/markdown keeps you in Markdown.
>
> - [sitemap.md](https://docs.kentico.com/sitemap.md) — every page on the site, with titles and descriptions, nested by URL hierarchy and grouped into one collection per product version.
> - [llms.txt](https://docs.kentico.com/llms.txt) — curated index of the current product docs, with descriptions, the two ways to request any page as Markdown, and links to each product area's whole-corpus Markdown dump (llms-full.txt).

> **Info:** 
>
> ## Work with error page
>
> Error pages are an important part of your website that deserve attention. Creating a helpful and user-friendly error page can help improve your visitor's experience and keep them engaged. In the following guides, learn about different aspects of the error page, and how you can create one in Xperience by Kentico.
>
> ---
>
> [404 best practices](https://docs.kentico.com/guides/digital-marketing/work-with-error-page/404-best-practices.md)
>
> **CONCEPT**
>
> Read about the 404 page's purpose and best practices that helps you create an effective error page.
>
> ---
>
> [How to model a 404 page](https://docs.kentico.com/guides/digital-marketing/work-with-error-page/How-to-model-an-error-page.md)
>
> **TUTORIAL**
>
> Learn how to create a simple error page in Xperience.