Google Tag Manager is a tag management system (TMS) that allows you to quickly and easily update measurement codes and related code fragments collectively known as tags on your website or mobile app.
Ibexa DXP is an open-source enterprise PHP content management system (CMS) and Digital Experience Platform (DXP) developed by the company Ibexa (known previously as eZ Systems).
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.
PHP is a general-purpose scripting language used for web development.