You can create a Cron Job for a file, instead of urls, download the file from here

https://drive.google.com/open?id=0BwqJtL0aE482RGUxd2NfcmZleTQ

Open htaccess, and edit the string:

RewriteCond $1 !^(index\.php|update\.php|assets|images|js|css|uploads|favicon.png)

Add

|cron\.php

RewriteCond $1 !^(index\.php|cron\.php|update\.php|assets|images|js|css|uploads|favicon.png)