In general, commerce sites need to keep track of a number of things so that the ordering works, and that we know who bought something and where to send things. Again, this data is not shared or sold. Specifically:
There are some links to accounts on other platforms and these are of course snarling hungry beasts eyeing all of your data. But there are no affiliate links or trackers or cookies from us.
If you have questions about this, please get in touch: email@example.com.