That's not the level of detail I'm asking for. I'm not talking about publishing the algorithm. But if there is a dramatic change in ranking or my site is remov

That's not the level of detail I'm asking for. I'm not talking about publishing the algorithm. But if there is a dramatic change in ranking or my site is removed entirely, it should be possible to ask Google to investigate (possibly automated) and tell me if something out of the ordinary has happened. Secrecy shouldn't mean to hide simple mistakes on either side. That makes search results worse not better, as it was clearly the case with protonmail.com