Is it possible to block Tor users?

Question

Would it be possible to block Tor users? (https://www.torproject.org/)

Due to the nature of the site I run I should do all I can to stop multiple accounts and block cert

Answer 1

Here (see https://github.com/RD17/DeTor) is a simple REST API to determine whether a request was made from TOR network or not.

The request is: curl -X GET http://detor.ambar.cloud/.

The response is:

{ 
  "sourceIp": "104.200.20.46",
  "destIp": "89.207.89.82",
  "destPort": "8080",
  "found": true 
}

As a bonus you can add a badge to your site to detect whether a user comes from TOR or not: