Apache is a free and open-source cross-platform web server software.
Endurance Page Cache adds basic file-based caching to WordPress.
Jetpack is a popular WordPress plugin created by Automattic, the people behind WordPress.com.
Twenty Nineteen is the default WordPress theme for 2019.
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.