Apache is a free and open-source cross-platform web server software.
Bootstrap is a free and open-source CSS framework directed at responsive, mobile-first front-end web development. It contains CSS and JavaScript-based design templates for typography, forms, buttons, navigation, and other interface components.
cdnjs is a free distributed JS library delivery service.
Debian is a Linux software which is a free open-source software.
Drupal is a free and open-source web content management framework.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Popper is a positioning engine, its purpose is to calculate the position of an element to make it possible to position it near a given reference element.
Simpli.fi is a programmatic advertising and agency management software.
Siteimprove is a digital analytics and content QA platform.