Our company works with affiliates that promote our products. They get paid based on how many sales they bring to us.
To track conversions, they ask us to put third party tracking pixels on our "thank you" page (final page where our customer is being redirected after payment through third party billing processor is complete).
So, we ended up with a ton of tracking JS code and hidden iframes on our "thank you" page.
Is it safe?
The billing processor sends sensitive data to this page via GET variables that we'd rather not make accessible to the affiliates.
Or maybe there is a better way to do this? Like, store all the tracking code from our affiliates in a database and only load the one that matches the customer's referral?
UPDATE
I'm worried about "third party tracking pixels" that are not from the "trusted" third parties (Like Google, Yahoo) but custom-made by our affiliates.