Cowboy is a small, fast, modular HTTP server written in Erlang.
Font Awesome is a font and icon toolkit based on CSS and Less.
Google Optimize allows you to test variants of web pages and see how they perform.
Heroku is a cloud platform as a service (PaaS) supporting several programming languages.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Progressive Web Apps (PWAs) are web apps built and enhanced with modern APIs to deliver enhanced capabilities, reliability, and installability while reaching anyone, anywhere, on any device, all with a single codebase.
Ruby on Rails is a server-side web application framework written in Ruby under the MIT License.