---
title: Creating pages using ASPX templates
---

> 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).

ASPX page templates in Kentico allow you to control every aspect of page processing. On an ASPX template, you can use standard ASP.NET controls, as well as controls and web parts provided by Kentico. You can also modify the code of the pages freely. However, in exchange for the customizability of pages, you lose the convenience of adding and configuring web parts and widgets directly from your browser.

Most Kentico Certified Developers prefer using the Portal engine over developing ASPX templates.

To develop ASPX templates, you need:

- Microsoft Visual Studio or an equivalent IDE
- knowledge of ASP.NET and C# or VB
- a [supported web browser](https://docs.kentico.com/k8/installation/server-and-hosting-requirements.md)