Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Cloudways offers managed cloud-hosting services for WordPress sites on a cloud server where multiple copies of your content will be replicated throughout your chosen data center.
A multi-dimensional charting library built to work natively with crossfilter and rendered using d3.js
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
WooCommerce is an open-source ecommerce plugin for WordPress.
WordPress is a free and open-source content management system written in PHP and paired with a MySQL or MariaDB database. Features include a plugin architecture and a template system.