Thanks for bringing this to my attention. It's just an error in the readme file, I accidentally swapped .nl for .com. My site is fine, and does not have any issues.
Since the error was in the Author URI, it won't show up anywhere in the plugin. The author URI from the perpagehead.php will show, though, but that one was already correct.
Fixed it now, but didn't release a new version for it. So if you download it now, it should be fixed, but if you've downloaded it before, you won't get an update notification.
And, obviously, this plugin does not contain any malware (if you know PHP you can check, else you can run any scan you want on it, it will come back clean now).