Until now the only record of activity was a monthly counter per account, which cannot answer whether a new signup ever rendered anything.
Requests now write a server-side event: time, endpoint, outcome, render time and the target's domain only, never the URL. Anonymous demo visitors are recorded as a hash salted with a value that includes the day, so the same person on two days cannot be linked, and the hash never contains the IP. Everything is pruned at 90 days, and the terms page says so.
No pixel, no cookie, no third-party script, same as before.