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.
Open Graph is a protocol that is used to integrate any web page into the social graph.
PHP is a general-purpose scripting language used for web development.