Yeah that would be the best way to solve this problem.

Well you keep saying monitor a domain, in that case a DNS monitor would make more sense than HTTP(s) since that’s for monitoring a service. That’s why I was a bit confused. But yeah try to enable the ignore SSL option and see if that changes anything. You didn’t include a screenshot of the settings which makes a bit difficult to diagnose the problem so I will leave it here.

Which one of those. You pick one when adding something new to monitor. Actually just send a screenshot of the uptime-kuma settings of one of the services that are giving you problems.

Sorry I’m a bit confused. What kind of tracker are you using in uptime-kuma and what address is it pointing to?

If you ping the domain from inside the container, does it succeed?