Google PageSpeed is a family of tools designed to help websites performance optimisations.
GTranslate is a website translator which can translate any website to any language automatically.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Smart Slider 3 is a responsive, SEO optimised WordPress plugin.
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.