https://deadmanssnitch.com/
Dead Man’s Snitch is a cron job monitoring tool that keeps an eye on your periodic processes and notifies you when something doesn’t happen. Daily backups,...
dead mansimple cronsnitchjob
https://cronitor.io/?ref=cronitorstatus
Free uptime, status and performance monitoring for cron jobs, websites, APIs and more. Instant alerts when your system fails.
simple monitoringapplicationcronwebsite
https://wordpress.org/support/topic/this-one-works-verygood-but-it-not-have-a-simple-cron-schedule-why/
This one works! VeryGood! But it not have a simple cron schedule! why!! loganivan (@loganivan) 8 years, 3 months ago This one works! VeryGood! But it not have...
oneworksverygoodsimple
https://www.howtogeek.com/i-automated-linux-backups-with-a-simple-script-3-lessons-i-learned-the-hard-way/
Skip one-click backup apps. This rsync script gives you full control over what gets saved and when, plus logs and a few hard-won lessons.
bash scriptautomatedlinuxbackupssimple