Apache is a free and open-source cross-platform web server software.
Jetpack is a popular WordPress plugin created by Automattic, the people behind WordPress.com.
Open Graph is a protocol that is used to integrate any web page into the social graph.
PHP is a general-purpose scripting language used for web development.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
Varnish is a reverse caching proxy.
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.
Zakra is flexible, fast, lightweight and modern multipurpose WordPress theme that comes with many starter free sites.