phpservermon VS botnbot

I use php servermon, it's pretty simple compared to things like zabbix but you need php, mysql and a webserver

Wrote my own, they're all too expensive. I've always recommended PHP Server Monitor for those who are interested: https://github.com/phpservermon/phpservermon

I'm using https://www.phpservermonitor.org/ on a remote shared host to ping my home server. Extremely easy to setup and just works. (even if it's not too pretty)

absolutely simplest one to setup is https://www.phpservermonitor.org/

If you are looking for something really simple with a web dashboard there is https://github.com/phpservermon/phpservermon

Throw up a lamp stack on the PI and use PHPServerMonitor here's the link for their github https://github.com/phpservermon/phpservermon this is what I use, not only does it monitor your websitew it can also monitor ports for services too really handy becuase it can also send you email and sms notifications when servers go down so you don't have to be watching the screen to know if a host has gone down.

Check https://github.com/phpservermon/phpservermon

If you want a self hosted solution : https://github.com/Botnbot/botnbot. But it doesn't check if cert is valid for at least two weeks