Apache is a free and open-source cross-platform web server software.
Debian is a Linux software which is a free open-source software.
DoubleClick for Publishers (DFP) is a hosted ad serving platform that streamlines your ad management.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Google Publisher Tag (GPT) is an ad tagging library for Google Ad Manager which is used to dynamically build ad requests.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
ShareThis provides free engagement and growth tools (e.g., share buttons, follow buttons, and reaction buttons) for site owners.