DataTables is a plug-in for the jQuery Javascript library adding advanced features like pagination, instant search, themes, and more to any HTML table.
Etracker is a web optimisation solution.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Leaflet is the open-source JavaScript library for mobile-friendly interactive maps.
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.