just so you'll know, similar web gets it data, mainly by spying on users via browser extensions. this is far from being legal. or at least a dark gray area.
I have personally complained about that, once found private URLs I sent to clients, and were not published elsewhere ever, were listed in their stats under that specific sub domain, but never got a satisfying response, if at all.
I have personally complained about that, once found private URLs I sent to clients, and were not published elsewhere ever, were listed in their stats under that specific sub domain, but never got a satisfying response, if at all.