A third-party cookie refers to a cookie that is associated with a file from a different domain than the visitor’s current domain. There is nothing intrinsically different about first and third party cookies, it’s just a matter of context of when a file is requested by the server.
Conversion marketing – Glossary of Conversion Marketing.
Over 300 tools reviewed – Digital Marketing Toolbox.
A/B testing software – Which A/B testing tools should you choose?
Types of A/B tests – How to optimise your website’s performance using A/B testing.