X-Frame-Options: DENY
Adding this HTTP header makes your site not work if embedded.
Adding this HTTP header makes your site not work if embedded.
You'd have to move the domain check in syntax and placement I guess, in an annoying game of cat and mouse... but it'd be something I suppose? Probably not worth it if it's not a large enough return.
That is trivial to remove via proxying, which author mentioned them doing.
Really, anything you add to the page can be just removed that way. Only thing you can try is to somehow differentiate attacker traffic from normal users but with ubiquity of VPN providers good luck
Many ways to do just that, suggested in recent discussion: