Apache is a free and open-source cross-platform web server software.
EWWW Image Optimizer is an image optimisation WordPress plugin designed to improve the performance of your website.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
PHP is a general-purpose scripting language used for web development.
Varnish is a reverse caching proxy.
WordPress Super Cache is a static caching 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.