Apache is a free and open-source cross-platform web server software.
Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Plesk is a web hosting and server data centre automation software with a control panel developed for Linux and Windows-based retail hosting service providers.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Slider Revolution is a flexible and highly customisable slider.
WPBakery is a drag and drop visual page builder plugin for WordPress.