1. WordPress is a free and open-source content management system (CMS) based on PHP and MySQL.
2. WordPress is installed on a web server, which either can be part of an Internet hosting service or a network host in its own right.
3. An example of the first case may be a service like WordPress.com, and the second case could be a computer running the software package WordPress.org.
4. As of February 2019, WordPress.com had a market share of 33% for all websites worldwide.
5. WordPress is the most popular website management or blogging system in use on the Web, supporting more than 60 million websites.
6. WordPress is released under the GPLv2 (or later) license from the Free Software Foundation.
7. WordPress has a web template system using a template processor.
8. Users can install and switch between different themes, which customize the look and feel of the site without modifying the underlying code.
9. WordPress is used by more than 60 million websites, including 30.6% of the top 10 million websites as of April 2019, WordPress is one of the most popular content management system solutions in use.
10. As of June 2019, version 5.2.3 is available for download. Released on May 7, 2019, it is the latest stable release of WordPress.
11. WordPress has a three-tier architecture: the core, themes, and plugins.
12. WordPress has been described as a “stateless” CMS, meaning that no user information is stored in the database.
14. By default, WordPress does not allow direct access to the database.
15. WordPress has an extensive plugin architecture which allows users and developers to extend its functionality beyond the core features.