Key takeaways
- WordPress is free, open-source software that powers over 40% of all websites, from blogs to large business sites.
- WordPress.org is the self-hosted software you install on your own hosting; WordPress.com is a hosted service by Automattic built on it.
- For businesses that want full control, custom themes and plugins, self-hosted WordPress.org is usually the right choice.
Most people first meet WordPress as “the blogging platform”, but today it runs news sites, online stores, membership sites, portfolios and corporate websites. This website runs on a custom WordPress theme. Here’s what WordPress actually is, how it works and which version you should choose.
How WordPress works#
- Core: the PHP application that manages content, users, media and settings, backed by a MySQL/MariaDB database.
- Themes: control design and templates — see how to choose a theme.
- Plugins: add features — SEO, forms, e-commerce, security — see essential plugins.
- Block editor (Gutenberg): the visual editor for pages and posts — see block editor guide.
- REST API: lets other apps read and write content, enabling headless and mobile use.
WordPress.org vs WordPress.com#
| WordPress.org (self-hosted) | WordPress.com (hosted) | |
|---|---|---|
| Cost | Software free; you pay for hosting and domain | Free tier with limits; paid plans for more |
| Custom themes and plugins | Any | Only on Business/higher plans |
| Control and code access | Full | Limited on lower plans |
| Maintenance | You (or your developer/host) handle updates, backups, security | Handled by WordPress.com |
| Monetisation and ads | Your choice | Restricted on lower plans |
| Best for | Businesses, custom sites, e-commerce, SEO-focused sites | Hobby blogs, simple sites with no maintenance |
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Why WordPress is good for SEO#
- Server-rendered HTML that search engines read easily.
- Clean permalinks, automatic XML sitemaps and canonical tags out of the box.
- Mature SEO plugins (Yoast, Rank Math) or SEO-built themes like this one.
- Easy publishing workflow for regular content.
Read the full WordPress SEO guide.
Limitations to be aware of#
- Maintenance: core, themes and plugins need regular updates — see maintenance checklist.
- Security: its popularity makes it a target; most hacks come from outdated plugins and weak passwords — see WordPress security.
- Performance: heavy themes and too many plugins slow it down — see speed optimization.
- Complex apps: for SaaS products and complex dashboards, a dedicated framework is often better — see how to build a SaaS.
Is WordPress right for you?#
Choose WordPress if you want a content-driven site you can edit yourself, strong SEO foundations, and the freedom to grow (blog, shop, bookings) without rebuilding. Consider alternatives like Shopify for pure e-commerce with minimal maintenance, or a custom app for software products.
WordPress FAQ#
Is WordPress free?#
The software is free. You pay for hosting, a domain and optionally premium themes, plugins and development.
Is WordPress only for blogs?#
No. It powers business websites, e-commerce stores (WooCommerce), membership sites, portfolios and more.
Can I move from WordPress.com to WordPress.org?#
Yes. Export your content from WordPress.com and import it into a self-hosted install, then set up redirects — see WordPress migration guide.