HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Plesk is a web hosting and server data centre automation software with a control panel developed for Linux and Windows-based retail hosting service providers.
ProvenExpert is a review based marketing platform that allows users to create customer surveys, provides aggregate reviews and ratings.
Typekit is an online service which offers a subscription library of fonts.
TYPO3 is a free and open-source Web content management system written in PHP.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.