A/B Testing =========== Optimizely ---------- click goals measures how often visitors click an element url targeting where the experiment runs audiences who sees the experiment The setup is strait-forward, and the interface makes it easy for non-technical people to create experiments related to simple content and visual changes. For example you can change css and copy. When changing markup a developer should probably be involved as other code or cascading styles might rely on the document structure. Setup ````` you’ll need to paste that line of code into the tag of any page you want to include in your experiment Because Optimizely will actually control how your page displays, it’s important to put the snippet as high in the tag as possible. This lets Optimizely load variations in real time, before the visitor even sees the page.