WordPress (CMS)
WordPress is an open-source content management system (CMS) used to create and manage websites, blogs, and e-commerce stores. Launched in 2003, it has grown into a dominant web platform—powering roughly one-third of websites—and a large developer ecosystem that has produced tens of thousands of plugins and themes.
Key takeaways
- WordPress is a flexible, widely used open-source CMS.
- It offers two main usage paths: hosted (WordPress.com) and self-hosted (WordPress.org).
- A huge plugin and theme ecosystem enables extensive customization.
- Because of its popularity, WordPress sites are common targets for attackers; regular updates and good security practices are essential.
How WordPress works
There are two primary ways to use WordPress:
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- Hosted (WordPress.com)
- WordPress runs on the provider’s servers.
- Ideal for non-technical users who want minimal maintenance.
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Automatic updates and built-in hosting reduce security and upkeep overhead.
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Self-hosted (WordPress.org)
- You download WordPress and install it on your own or a third-party server.
- Offers full control and customization of code, themes, and plugins.
- Requires you to manage hosting, updates, backups, and security.
Customization and architecture
WordPress is built to be extensible:
* A standardized application programming interface (API) exposes hooks for themes, plugins, and database interactions.
* Developers can add features without changing core WordPress files, helping maintain compatibility across installations that stay updated.
* Themes control site design; plugins add features and integrations.
Plugins and real-world example
Plugins extend WordPress in many ways. Common plugin categories include:
* E-commerce (e.g., WooCommerce for online stores, order management, shipping)
* Search engine optimization (SEO)
* Contact forms and lead capture
* Email marketing and newsletters
* Social sharing and commenting systems
* Design and performance tools
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WooCommerce is a widely used example that turns a WordPress site into a fully functional online store.
Security and maintenance
Because WordPress is broadly used, attackers often target sites with outdated core software, themes, or plugins. To reduce risk:
* Keep WordPress core, themes, and plugins up to date.
* Limit the number of installed plugins to those you need and trust.
* Use strong passwords, two-factor authentication, and secure hosting.
* Implement regular backups and consider security plugins or managed hosting for additional protection.
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Choosing hosted vs. self-hosted
- Choose hosted (WordPress.com) if you prefer simplicity, built-in updates, and a lower maintenance burden.
- Choose self-hosted (WordPress.org) if you need advanced customization, specialized plugins, or full control over hosting and code—while being prepared to handle ongoing maintenance and security.
Conclusion
WordPress is a versatile CMS suitable for everything from personal blogs to complex e-commerce sites. Its large ecosystem of themes and plugins makes it highly adaptable, but that same popularity demands careful attention to updates and security practices to keep sites safe and reliable.