Apache is a free and open-source cross-platform web server software.
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.
Pinterest is an image sharing and social media service designed to enable saving and discovery of information.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
Varnish is a reverse caching proxy.