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.
Issuu is a digital discovery and publishing platform.
OpenSSL is a software library for applications that secure communications over computer networks against eavesdropping or need to identify the party at the other end.
SPIP is a content management system written in PHP that uses one or more databases like SQL, SQLite or PostgreSQL.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.