What Is WordPress?
WordPress is an open-source content management system (CMS) that powers roughly 43% of all websites on the internet, from personal blogs to large news sites and online shops. You install it on your own hosting (WordPress.org) or use the hosted service (WordPress.com). It works via themes (which control design) and plugins (which add functionality), making it possible to build almost any kind of website without custom code. Its biggest risks are security vulnerabilities from poorly maintained plugins and performance issues on sites with many plugins.
WordPress powers 43% of all websites. Here is how it works, what it costs, and when you should and should not choose it.
How WordPress Works
WordPress is built around three main concepts: themes, plugins, and content. Themes control how your site looks, from typography and colors to page layout. Plugins add functionality, such as contact forms, SEO tools, e-commerce, or membership areas. Content lives in the database as posts and pages, which you edit through a visual block editor called Gutenberg.
When a visitor loads your site, WordPress queries the database, applies your theme, and assembles the page on the server before sending it to the browser. This is called server-side rendering, and it means every page load involves a database query. With good hosting and caching, this is fast. Without it, performance can suffer, which matters for Core Web Vitals and your search ranking.
WordPress.com vs WordPress.org
This is the most common point of confusion for new users, and it has real consequences for what you can build.
WordPress.org is the free, open-source software. You download it, install it on your own hosting, and have complete control over every theme, plugin, and line of code. You own your data. The trade-off is that you handle hosting, security, updates, and backups yourself, or pay someone to do it.
WordPress.com is the hosted service run by Automattic. The lowest tiers restrict which plugins and themes you can install, which limits customization. Higher tiers unlock more flexibility but cost more. For businesses that want full control and access to the complete plugin ecosystem, WordPress.org on managed hosting (Kinsta, WP Engine, or Cloudways starting around 25 euros per month) is almost always the better path. See the website hosting comparison for a broader look at your options.
WooCommerce for Online Shops
WooCommerce is the most widely used e-commerce plugin for WordPress, powering around 26% of all online shops globally. It turns a standard WordPress site into a fully functioning shop, supporting variable products, discount codes, subscription billing, and multi-currency checkout via additional plugins.
The appeal is flexibility. Because WooCommerce is open-source and has thousands of extensions, you can build almost any shop configuration imaginable. The challenge is maintenance. WooCommerce, its extensions, and your theme each update on separate schedules, and plugin conflicts are common. For shops with a large catalog or high transaction volume, investing in a developer to maintain the stack is usually necessary.
The Case for WordPress
WordPress’s 43% market share is not an accident. A few factors explain why it remains dominant after two decades.
The plugin ecosystem is unmatched. With over 60,000 free plugins in the official directory, almost any feature you can describe has already been built. The developer pool is equally large, which keeps freelance and agency rates competitive.
Initial cost is low. WordPress itself is free, and you can have a basic site running on shared hosting for under 10 euros per month. This makes it accessible for startups and small businesses that need to move quickly without large upfront investment.
SEO is well supported. Plugins like Yoast SEO and Rank Math give you granular control over meta tags, sitemaps, and structured data without needing a developer for every change.
The Case Against WordPress
The same openness that makes WordPress powerful also creates its biggest risks.
Security is the primary concern. Because WordPress is so widespread, it is a constant target for automated attacks. The majority of compromised WordPress sites were breached through outdated plugins or themes, not the WordPress core itself. If you install plugins from unknown sources, skip updates, or use weak admin credentials, you are creating risk.
Performance at scale requires active management. A WordPress site with 40 active plugins, unoptimized images, and no caching layer will be slow. Slow sites hurt Core Web Vitals scores, which affect your search visibility. Fixing this requires deliberate choices about hosting, caching plugins, image optimization, and sometimes removing functionality you assumed was necessary.
Maintenance overhead is ongoing. WordPress, themes, and plugins all need regular updates. Skip them for a few months and you accumulate security debt. For teams without a technical person on staff, this is a real operational cost to factor in before choosing the platform.
Our tip: If you are evaluating WordPress for a new business site, install it on a staging environment first and test three or four must-have plugins together. Plugin conflicts show up in testing, not in theory, and catching them before launch saves significant frustration later.
Frequently asked questions
What is the difference between WordPress.com and WordPress.org?
WordPress.org is the free, open-source software you download and install on your own web server. You have full control over themes, plugins, and your data, but you are responsible for hosting, backups, updates, and security. WordPress.com is a hosted service run by Automattic that takes care of the technical side for you, but restricts what plugins and themes you can use on lower-tier plans. For most businesses that want full control, WordPress.org on quality managed hosting (such as Kinsta or WP Engine, priced from around 25 euros per month) is the better choice.
Is WordPress good for e-commerce?
WordPress with the WooCommerce plugin is one of the most widely used e-commerce platforms in the world, powering around 26% of all online shops. It handles everything from simple product catalogs to complex shops with variable products, subscriptions, and multi-currency checkout. The main advantage is flexibility and the enormous plugin ecosystem. The main disadvantages are that WooCommerce requires careful maintenance (plugin conflicts are common) and performance optimization (a poorly configured WooCommerce site can be slow). For shops with fewer than 50 products and limited technical resources, Shopify is often a simpler alternative.
When should you not choose WordPress?
WordPress is not the right choice when security and maintenance capacity are limited. Because WordPress is so widespread, it is a common target for automated attacks, and many security incidents trace back to outdated plugins or themes. If you cannot commit to regular updates and a backup strategy, you are better off with a hosted platform like Webflow, Squarespace, or Shopify, which handle security centrally. WordPress is also not ideal for highly custom web applications where the CMS structure gets in the way, or for high-traffic sites where performance tuning requires ongoing engineering attention.