Is it possible to determine if visitors are using TOR?

Question

Analytics

I want to suggest site visitors to use TOR to bypass possible blocking.
We need a way to get statistics: how many visitors use TOR (possibly other anonymization methods). Is there a way?
The site is not raised in onion or i2p.

Answer 1

You can check by the list of exit nodes: https://check.torproject.org/exit-addresses