What Exactly is WordPress? A Beginner's Guide
June 23, 2026 · Devhuset Team
If you've spent any time researching how to build a website, you've almost certainly run into the name WordPress. It gets recommended constantly, by web designers, by hosting companies, by nearly every "how to start a website" guide online. But what is it, exactly? At its core, WordPress is a content management system, or CMS: software that lets you create, edit, and organize the content on your website through a simple dashboard, without needing to write code for every page or blog post you publish.
A Blogging Tool That Outgrew Its Roots
WordPress launched in 2003, built by Matt Mullenweg and Mike Little as a fork of an earlier blogging tool called b2/cafelog. In its early years, it really was just for blogs: simple posts, comments, and a basic theme. Over the following two decades, that changed dramatically. Through a combination of an open-source, community-driven development model and a plugin architecture that let outside developers extend its capabilities, WordPress grew from a blogging tool into a full website platform capable of running online stores, membership sites, portfolios, and corporate websites of every size.
Themes, Plugins, and the Dashboard
Practically speaking, a WordPress site is built from three moving parts. The dashboard is where you log in to write posts, upload images, and manage settings. Themes control how your site looks, its layout, colors, and typography, and can usually be swapped without losing your content. Plugins add functionality: a contact form, an SEO toolkit, a booking calendar, an online store. There are tens of thousands of free and paid plugins available, which is a big part of why WordPress can be adapted to almost any type of business.
Self-Hosted vs. WordPress.com
One common point of confusion is the difference between WordPress.org, the free, open-source software you install on your own hosting, and WordPress.com, a hosted service run by Automattic that manages the technical side for you, for a fee. Self-hosted WordPress gives you full control over your site and hosting, at the cost of needing to handle your own updates and security. WordPress.com trades some of that flexibility for convenience.
Why It Runs So Much of the Web
The numbers here are genuinely striking. Current estimates put WordPress's share of all websites at somewhere around 43%, and when you narrow that down to websites that use any identifiable content management system, WordPress's share climbs to roughly 60%, more than every other CMS combined. That dominance is largely a byproduct of the open-source, plugin-driven model: because anyone can build on top of it, an enormous ecosystem of themes, plugins, agencies, and tutorials has grown up around it, which in turn makes it the default choice for a huge share of new websites.
For a small business owner or a hobbyist blogger, that ecosystem is a real practical advantage: whatever you need your site to do, there's a good chance a plugin, tutorial, or freelancer already exists for it. The tradeoff is that self-hosted WordPress does ask more of you technically than an all-in-one builder does. Understanding that tradeoff, rather than just following the recommendation, is the first real step in deciding if it's the right fit for your project.