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.
Websites that have a shopping cart or checkout page, either using a known ecommerce platform or a custom solution.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Trusted Shops is a company that acts as a 3'rd party representing the common interests of both consumers and retailers.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.