Apache is a free and open-source cross-platform web server software.
Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
Slider Revolution is a flexible and highly customisable slider.
WooCommerce is an open-source ecommerce plugin for WordPress.
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.
WPBakery is a drag and drop visual page builder plugin for WordPress.