I'd like to add Cron Monitoring alert.
To test the feature, I added the following line to the server's crontab:

* * * * * curl -m 10 'plus.site24x7.com/cron/<apikey>/colo-apps-lp1/start' && /home/ronba_admin/bash/cron_test.sh && curl -m 10 'plus.site24x7.com/cron/<apikey>/colo-apps-lp1/end'

Where ` /home/ronba_admin/bash/cron_test.sh` includes just the `date` command.

However, I don't understand how I should be alerted by site24x7.

I moved cron_test.sh to a different directory, and the cron monitor screen looks exactly the same with a valid and invalid script in the crontab line.