Yes it is. This is by design, and better than using a random first relay for every circuit, new random one every day, etc. https://blog.torproject.org/improvin

Yes it is. This is by design, and better than using a random first relay for every circuit, new random one every day, etc. https://blog.torproject.org/improving-tors-anonymity-changing-guard-parameters/ https://blog.torproject.org/improving-tors-anonymity-changin... https://www-users.cse.umn.edu/~hoppernj/single_guard.pdf https://www-users.cse.umn.edu/~hoppernj/single_guard.pdf