---
title: "WordPress"
description: "WordPress is the world's most popular CMS, powering over 40% of websites. See how it works, what it consists of and why it dominates the market."
url: "https://nodea.io/en/glossary/wordpress"
lang: "en"
updated: "2026-07-13"
---

# WordPress

> WordPress is an open-source content management system (CMS) powering over 40% of websites, extensible through themes and plugins.

**WordPress** is an open-source [content management system](https://nodea.io/en/glossary/cms) (CMS) that powers more than 40% of all websites, making it the most popular solution of its kind in the world. It began as a blogging platform but grew into a universal tool for building company sites, portals, stores and content-driven applications.

## How WordPress works

WordPress is written in [PHP](https://nodea.io/en/glossary/php) and uses a database to store content. Themes control a site's appearance, while plugins extend its functionality — from forms and galleries to advanced SEO tooling. Thanks to the block editor, content is created visually, without knowing any code, which lowers the barrier for non-technical people.

## Ecosystem and uses

WordPress's huge popularity stems from its vast ecosystem: tens of thousands of plugins and themes, many hosting companies offering [hosting](https://nodea.io/en/glossary/hosting) optimised for this CMS, and a large community. WordPress also underpins [WooCommerce](https://nodea.io/en/glossary/woocommerce), the most popular e-commerce platform for the system. The flip side of popularity is that WordPress is a frequent target of attacks, so regular updates of the core, themes and plugins, strong passwords and backups are essential. Performance depends on hosting quality and optimisation — caching, image compression and limiting the number of plugins. Ultimately a site's success on WordPress depends not on the CMS itself but on maintenance discipline: updates, security, optimisation and a thoughtful choice of plugins combine to produce a fast, stable site.

### What is the difference between WordPress.org and WordPress.com?

WordPress.org is free software you install on your own hosting with full control. WordPress.com is a hosted service by Automattic with a ready-made environment but limitations that depend on your plan.

## Related

- [CMS](https://nodea.io/en/glossary/cms)
- [PHP](https://nodea.io/en/glossary/php)
- [WooCommerce](https://nodea.io/en/glossary/woocommerce)
- [Hosting](https://nodea.io/en/glossary/hosting)

---

Languages: [pl](https://nodea.pl/pl/slownik-pojec/wordpress.md)  
Site index: [llms.txt](https://nodea.io/en/llms.txt)