cdnjs is a free distributed JS library delivery service.
ConvertKit is an email marketing tool built for content creators.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Firebase is a Google-backed application development software that enables developers to develop iOS, Android and Web apps.
Flickity is a JavaScript slider library, built by David DeSandro of Metafizzy fame.
fullPage.js a jQuery and vanilla JavaScript plugin for fullscreen scrolling websites.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
HTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.
jQuery CDN is a way to include jQuery in your website without actually downloading and keeping it your website's folder.
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.
Underscore.js is a JavaScript library which provides utility functions for common programming tasks. It is comparable to features provided by Prototype.js and the Ruby language, but opts for a functional programming design instead of extending object prototypes.
Unpkg is a content delivery network for everything on npm.