Apache is a free and open-source cross-platform web server software.
Debian is a Linux software which is a free open-source software.
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.
Jekyll is a blog-aware, static site generator for personal, project, or organisation sites.
Open Graph is a protocol that is used to integrate any web page into the social graph.