Varnish is a reverse caching proxy.

Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.

Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.

Vercel is a cloud platform for static frontends and serverless functions.

Chart.js is an open-source JavaScript library that allows you to draw different types of charts by using the HTML5 canvas element.

Popper is a positioning engine, its purpose is to calculate the position of an element to make it possible to position it near a given reference element.

Tippy.js is the complete tooltip, popover, dropdown, and menu solution for the web, powered by Popper.

Tailwind is a utility-first CSS framework.

JavaScript library to animate elements on your page as you scroll.

Unpkg is a content delivery network for everything on npm.

jQuery CDN is a way to include jQuery in your website without actually downloading and keeping it your website's folder.

JSDelivr is a free public CDN for open-source projects. It can serve web files directly from the npm registry and GitHub repositories without any configuration.

cdnjs is a free distributed JS library delivery service.

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.

Fly is a platform for running full stack apps and databases.