Does AffiliateWP work with caching?
Yes it does! One of our number one frustrations with previous systems was the lack of support for aggressive caching. You often had to make a compromise: either have good caching and a fast site with no referral tracking, or successful referral tracking with little to no caching and a slow site.
We spent numerous hours laboring over the tracking methods built into AffiliateWP to ensure it works with all caching systems, even the most aggressive. We even went so far as to communicate with several of the managed WordPress hosting companies that implement really aggressive caching to ensure AffiliateWP would work on their systems with zero special configuration from the hosting company.