AngularJS is a JavaScript-based open-source web application framework led by the Angular Team at Google.
Facebook pixel is an analytics tool that allows you to measure the effectiveness of your advertising.
Internet Information Services (IIS) is an extensible web server software created by Microsoft for use with the Windows NT family.
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.