Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Contao is an open source CMS that allows you to create websites and scalable web applications.
A multi-dimensional charting library built to work natively with crossfilter and rendered using d3.js
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Modernizr is a JavaScript library that detects the features available in a user's browser.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
PHP is a general-purpose scripting language used for web development.