If your site shows a 'Site Currently Unavailable' message, don’t worry—it’s...

https://delta-wiki.win/index.php/Site_Currently_Unavailable_After_Changing_File_Permissions:_What_You_Need_to_Know

If your site shows a 'Site Currently Unavailable' message, don’t worry—it’s often fixable. First, check your DNS settings to ensure your domain points correctly