Apache is a free and open-source cross-platform web server software.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Open Graph is a protocol that is used to integrate any web page into the social graph.
WooCommerce is an open-source ecommerce plugin for WordPress.
WPML plugin makes it possible to build and run fully multilingual WordPress sites.