Apache is a free and open-source cross-platform web server software.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Phusion Passenger is a free web server and application server with support for Ruby, Python and Node.js.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
RackCache is a quick drop-in component to enable HTTP caching for Rack-based applications.
A modest JavaScript framework for the HTML you already have.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
Unpkg is a content delivery network for everything on npm.