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.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
OpenLayers is an open-source JavaScript library for displaying map data in web browser.
A modest JavaScript framework for the HTML you already have.
Tiny Slider is a vanilla javascript slider for all purposes.
TYPO3 is a free and open-source Web content management system written in PHP.