Apache is a free and open-source cross-platform web server software.
Clutch review widgets are stand-alone applications that you can embed on your website to show your dynamic ratings and reviews.
Google Analytics is a free web analytics service that tracks and reports website traffic.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
Open Graph is a protocol that is used to integrate any web page into the social graph.
PHP is a general-purpose scripting language used for web development.