Apache is a free and open-source cross-platform web server software.
cdnjs is a free distributed JS library delivery service.
Embedly is a service that allows developers to convert URLs into rich previews and embeddable content.
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.
Leaflet is the open-source JavaScript library for mobile-friendly interactive maps.
Modernizr is a JavaScript library that detects the features available in a user's browser.
Tiny Slider is a vanilla javascript slider for all purposes.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.