javascript
Javascript is a scripting language based on prototype-based programming. Javascript is used on PPC websites and landing pages for the purposes of setting up conversion tracking, analyzing user and website behavior and activity, and for the tracking of goals to determine success or failure in regards to Key Performance Indicators (KPIs). Javascript codes, known as scripts, can either be manually added one at a time to a website or landing page, or take advantage of the implementation through the Google Tag Manager tool.