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.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
Slider Revolution is a flexible and highly customisable slider.
Vue.js is an open-source model–view–viewmodel JavaScript framework for building user interfaces and single-page applications.
WPBakery is a drag and drop visual page builder plugin for WordPress.