Apache is a free and open-source cross-platform web server software.
Download Monitor is a plugin for selling, uploading and managing downloads, tracking downloads and displaying links.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
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.
WooCommerce is an open-source ecommerce plugin for WordPress.
WPML plugin makes it possible to build and run fully multilingual WordPress sites.