AddThis is a social bookmarking service that can be integrated into a website with the use of a web widget.
Engintron is a plugin that integrates Nginx to cPanel/WHM server.
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.
UserWay is a web accessibility overlay for websites that claims to improve compliance with accessibility standards.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.