I Googled it and I found these two articles that touch on it briefly: https://www.researchgate.net/figure/Network-level-DNS-Fingerprinting_fig1_345007931 https

I Googled it and I found these two articles that touch on it briefly: https://www.researchgate.net/figure/Network-level-DNS-Fingerprinting_fig1_345007931 https://www.researchgate.net/figure/Network-level-DNS-Finger... https://securitytrails.com/blog/cybersecurity-fingerprinting https://securitytrails.com/blog/cybersecurity-fingerprinting Is this the kind of tactic you mean?