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.
Ensighten is a solution that enables secure management, implementation and control of website technologies.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.