Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
Emotion is a library designed for writing CSS styles with JavaScript.
Envoy is an open-source edge and service proxy, designed for cloud-native applications.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
WP Engine is a website hosting provider.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.