cdnjs is a free distributed JS library delivery service.
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.
jQuery plugin for fluid width video embeds
GitHub Pages is a static site hosting service.
Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
A way to add Instagram photos to your website.
Ionicons is an open-source icon set crafted for web, iOS, Android, and desktop apps.
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.
MathJax is a cross-browser JavaScript library that displays mathematical notation in web browsers, using MathML, LaTeX and ASCIIMathML markup.
Unpkg is a content delivery network for everything on npm.
Varnish is a reverse caching proxy.
waitForImages is a lightweight, high-performance JavaScript library that simplifies the handling of image preloading events.