---
title: Developing websites
related:
  - https://docs.kentico.com/k9/managing-website-content.md
  - https://docs.kentico.com/k9/deploying-websites.md
  - https://docs.kentico.com/k9/configuring-kentico/optimizing-website-performance.md
  - https://docs.kentico.com/k9/references/kentico-controls/adding-kentico-controls-to-the-visual-studio-toolbox.md
---

> 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:** 
>
> #### [Basics](https://docs.kentico.com/k9/developing-websites/website-development-basics.md)
>
> An overview of the development process as we see it. What are page templates and what is the role of the content editors?
>
> #### [Development models (Portal engine, ASPX or MVC?)](https://docs.kentico.com/k9/developing-websites/choosing-the-right-development-model.md)
>
> Kentico offers several ways to build websites. If you are not sure which development model to follow, learn about their advantages and disadvantages.
>
> #### [Website data structure](https://docs.kentico.com/k9/developing-websites/defining-website-content-structure.md)
>
> Before you begin developing websites, familiarize yourself with the system's data structure. Learn how pages and files are organized, and about [page types](https://docs.kentico.com/k9/developing-websites/defining-website-content-structure/page-types.md) and [custom tables](https://docs.kentico.com/k9/developing-websites/defining-website-content-structure/custom-tables.md).

> **Info:** 
>
> #### [Developing websites using the portal engine](https://docs.kentico.com/k9/developing-websites/developing-websites-using-the-portal-engine.md)
>
> Design websites directly in your browser with minimal coding.

> **Info:** 
>
> #### [Developing websites using ASPX page templates](https://docs.kentico.com/k9/developing-websites/developing-websites-using-aspx-templates.md)
>
> Register ASPX web forms as templates in the system and use them to create pages.

> **Info:** 
>
> #### [Developing sites using ASP.NET MVC](https://docs.kentico.com/k9/developing-websites/developing-sites-using-asp-net-mvc.md)
>
> ASP.NET MVC is a powerful tool for building dynamic websites.

> **Info:** 
>
> #### [Loading and displaying data on websites](https://docs.kentico.com/k9/developing-websites/loading-and-displaying-data-on-websites.md)
>
> Learn how to display various types of data on your website's pages. Use components to load the required data and convert it into a viewable format using [Transformations](https://docs.kentico.com/k9/developing-websites/loading-and-displaying-data-on-websites/writing-transformations.md).

> **Info:** 
>
> #### [Troubleshooting websites](https://docs.kentico.com/k9/developing-websites/troubleshooting-websites.md)
>
> Learn where to view system information and the event log, and how to debug websites.

> **Info:** 
>
> #### [Designing websites using CSS](https://docs.kentico.com/k9/developing-websites/designing-websites-using-css.md)
>
> Adjust the appearance and design of your websites using CSS. Manage your CSS files directly in Kentico, or use your CSS files generated by your favorite automation tools.

> **Info:** 
>
> #### [Preparing widgets](https://docs.kentico.com/k9/developing-websites/preparing-widgets-for-users.md)
>
> Create components that content editors and other types of users can add onto pages.

> **Info:** 
>
> #### [Development for mobile devices](https://docs.kentico.com/k9/developing-websites/developing-websites-for-mobile-devices.md)
>
> Design your web pages to be easily viewable on mobile devices. [Create device profiles](https://docs.kentico.com/k9/developing-websites/developing-websites-for-mobile-devices/creating-device-profiles.md) for tablets, smartphones, or other devices, [prepare unique page layouts for different profiles](https://docs.kentico.com/k9/developing-websites/developing-websites-for-mobile-devices/creating-page-layouts-for-devices.md) and [develop mobile web pages](https://docs.kentico.com/k9/developing-websites/developing-websites-for-mobile-devices/creating-mobile-pages.md).

> **Info:** 
>
> #### [Team development](https://docs.kentico.com/k9/developing-websites/preparing-your-environment-for-team-development.md)
>
> Configure your environment to support development in a collaborating team.