Calendly is an app for scheduling appointments, meetings, and events.
Fastly is a cloud computing services provider. Fastly's cloud platform provides a content delivery network, Internet security services, load balancing, and video & streaming services.
Font Awesome is a font and icon toolkit based on CSS and Less.
GitHub Pages is a static site hosting service.
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.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Paddle is a billing and payment gateway for B2B SaaS companies.
Plausible is an open-source alternative to Google Analytics.
Varnish is a reverse caching proxy.