Expected HTTP status codes
Would be handy to have a simple "Yes a 405 here is okay" or something along those lines, for unusual but expected healthy status. Not sure how much development effort this would be to implement

Thanks for posting this suggestion, this is something under my radar for the moment, gathering interest.
As an alternative it’s possible to specify a string to search in the body, this will ignore the status code (but it only works if there is a body of course).