One thing I'll add to this, from more than one personal experience. A refusal to provide compensation info without first doing a reference check. The reference check should be the last thing after there is a conditional offer with at least a comp range provided. The reasoning I have been given is that they would need to see what the references say in order to determine the correct role or comp range. So when I suggest they provide the comp range assuming I have good references and they decline to, that's a nonstarter and demonstrates they are acting in bad faith IMO. This is clearly the type of negotiation tactic where you want your counter party to invest as much as possible (by providing their references) so you have more leverage.

if you are actually in a strong position, you can just refuse and say that you won’t continue the process without a range. i’ve never had a recruiter not cave on me