Apache is a free and open-source cross-platform web server software.
AppNexus is a cloud-based software platform that enables and optimizes programmatic online advertising.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Open Graph is a protocol that is used to integrate any web page into the social graph.
ProcessWire is an open source content management system (CMS) and framework (CMF).
UserWay is a web accessibility overlay for websites that claims to improve compliance with accessibility standards.