Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
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.
Klaviyo is an email marketing platform for online businesses.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Subbly is a web-based subscription ecommerce platform designed to help businesses build websites, enhance marketing automation, create coupon and discount codes and manage customers.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.