AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
Adobe Flash is a multimedia software platform used for production of animations, rich web applications and embedded web browser video players.
Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
PHP is a general-purpose scripting language used for web development.