Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Pingdom RUM(Real User Monitoring) is a feature of the Pingdom website monitoring and performance testing service. RUM enables you to collect and analyse data on how real users are experiencing your website.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.