Running Google Analytics in iframe?

Question

Our company runs a web site (oursite.com) with affiliate partners who send us traffic. In some cases, we set up our affiliates with their own subdomain (affiliate.oursite.com),

Answer 1

Sorry, but it's not going to work. The reason is because Google Analytics uses first-party cookies. This means the cookies that GA sets are specific to the domain the code is on. In your case, the iFrame is on a third-party domain. This means you're going to have two sets of GA cookies (one set for each domain), and no real way to reconcile the data.