PAGE FAILED CHECK Error Messages
If you can see your web page but you get an error message from our system saying "PAGE FAILED CHECK" the HOST NOT FOUND then the server that is hosting your site is blocking the ping from our server to verify that your site is a legitimate website. In this instance, you can try to proceed with the submission and we can do a manual review or you can try another web page.
If HOST NOT FOUND, but you cannot see it in our frame however the site displays normally when opened in a new tab, then no one will be able to see it in rotation. Most likely there is some code on your web page that prevents it from being displayed within a frame.
If the error indicates that your web page contains TOO MANY CHARACTERS, it is an indication that your site loads too slowly and will not work on our system, and will not pass a manual review.