cdnjs is a free distributed JS library delivery service.
Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
Google Analytics is a free web analytics service that tracks and reports website traffic.
HTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.
Imgix is a visual media platform for managing, processing, rendering, optimising and delivering your existing images.
Modernizr is a JavaScript library that detects the features available in a user's browser.
Packery is a JavaScript library and jQuery plugin that makes gapless and draggable layouts.
PHP is a general-purpose scripting language used for web development.