Cowboy is a small, fast, modular HTTP server written in Erlang.
Font Awesome is a font and icon toolkit based on CSS and Less.
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.
JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.
Mailchimp is a marketing automation platform and email marketing service.
Open Graph is a protocol that is used to integrate any web page into the social graph.
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.
Twitter Emoji is a set of open-source emoticons and emojis for Twitter, TweetDeck, and also for Android and iOS versions of the application.
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.