Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Optimizely is an experimentation platform that helps developers build and run A/B tests on websites.
RequireJS is a JavaScript library and file loader which manages the dependencies between JavaScript files and in modular programming.