Apache is a free and open-source cross-platform web server software.
Debian is a Linux software which is a free open-source software.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Matomo Analytics is a free and open-source web analytics application, that runs on a PHP/MySQL web-server.
TYPO3 is a free and open-source Web content management system written in PHP.