Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
cdnjs is a free distributed JS library delivery service.
Drupal is a free and open-source web content management framework.
enquire.js is a lightweight, pure JavaScript library for responding to CSS media queries.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
LiteSpeed is a high-scalability web server.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.