If your site shows a 'Site Currently Unavailable' message, don’t panic. Start...

https://charlie-wiki.win/index.php/Site_Currently_Unavailable_-_Should_I_Set_Up_a_Status_Page_for_a_Blog%3F

If your site shows a 'Site Currently Unavailable' message, don’t panic. Start by checking your DNS settings to ensure they point correctly to your server. Next, review file permissions to rule out 403 errors