Apache is a free and open-source cross-platform web server software.
cdnjs is a free distributed JS library delivery service.
Google Analytics is a free web analytics service that tracks and reports website traffic.
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.
PhotoSwipe is an open-source gallery to support JavaScript-based image zooming.
Swiper is a JavaScript library that creates modern touch sliders with hardware-accelerated transitions.
Unpkg is a content delivery network for everything on npm.
Vimeo is a video hosting, sharing and services platform. Vimeo operation an ad-free basis by providing subscription plans.