Apache is a free and open-source cross-platform web server software.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Drupal is a free and open-source web content management framework.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Modernizr is a JavaScript library that detects the features available in a user's browser.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.