cdnjs is a free distributed JS library delivery service.
Cowboy is a small, fast, modular HTTP server written in Erlang.
DatoCMS is a cloud-based headless Content as a service (CaaS) platform created to work with static websites, mobile apps and server-side applications of any kind.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
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.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Mailchimp is a marketing automation platform and email marketing service.
RackCache is a quick drop-in component to enable HTTP caching for Rack-based applications.
Sumo is a plugin offering set of marketing tools to automate a website's growth. These tools help drive extra traffic, engage visitors, increase email subscribers and build community.